SOLVING MULTI-STEP EQUATIONS. BEFORE SOLVING A MULTI-STEP EQUATION YOU MAY HAVE TO SIMPLIFY. EXAMPLE 3x+5+6x-7=25 1 st step: Identify like terms. 3x+5+6x-7=25.

Slides:

Advertisements

Similar presentations

Example 2 4 m 8 m 5m 12 m x y.

Advertisements

Solving Multi-Step Equations Just remember to follow the steps 1.Apply the Distributive Property 2.Combine like terms to simplify 3.Isolate the variable.

Solving Equations with the variable on both sides for algebra students This interactive learning object may contain content that is protected by copyright.

Solve an equation with variables on both sides

Test Clarification Questions Frequently missed problems on test

Solve an equation by combining like terms

Section 3.3 Solving Multi-Step Equations **More than one operation to isolate the variable**

4 step by step on solving linear equations

EXAMPLE 1 Collecting Like Terms x + 2 = 3x x + 2 –x = 3x – x 2 = 2x 1 = x Original equation Subtract x from each side. Divide both sides by x2x.

Lesson 2 Solving Inequalities

3.4 Solving Equations with Variables on Both Sides

Holt McDougal Algebra Completing the Square Solve quadratic equations by completing the square. Write quadratic equations in vertex form. Objectives.

3-2 HW: Pg #4-34e, 38, 40, ) B 47.) C.

Solving Equations Using Multiplication and Division Algebra 1 Section 3.2a.

Bell Work 1. 2(x +4) – 5(9n – 9) 3. 3(x – 6) x

Algebraic expression Solving for the variable Or X.

Solving Equations Medina1 Variables on Both Sides.

Solving Multi- Step Equations. And we don’t know “Y” either!!

Holt McDougal Algebra 1 Solving Two-Step and Multi-Step Equations Warm Up Evaluate each expression –3(–2) 2. 3(–5 + 7) – 4(7 – 5) Simplify.

Holt Algebra Solving Two-Step and Multi-Step Equations Multi-step Equations.

Solving Multi-Step Equations Just remember to follow the steps 1.Distribute if you can 2.Collect all like terms to simplify 3.Isolate the variable using.

Solve an equation by combining like terms EXAMPLE 1 8x – 3x – 10 = 20 Write original equation. 5x – 10 = 20 Combine like terms. 5x – =

Solving Equations Medina1 Multi-Step Equations. Steps to solve Medina2 3. Use inverse of addition or subtraction You may not have to do all the steps.

Jeopardy Solving Equations Add and Subtract Multiply and Divide Multi-Step Variables on each side Grouping Symbols $100 $200 $300 $400 $500 $100 $200.

Practice 2.2 Solving Two Step Equations.

Using Subtraction, Addition, Multiplication and Division One Step Equations.

Lesson 3.3 Solving Multi-step Equations Mr. Beltz & Mr. Sparks.

Holt McDougal Algebra Solving Two-Step and Multi-Step Equations 1-4 Solving Two-Step and Multi-Step Equations Holt Algebra 1 Warm Up Warm Up Lesson.

Multi-Step Equations We must simplify each expression on the equal sign to look like a one, two, three step equation.

One step equations Add Subtract Multiply Divide  When we solve an equation, our goal is to isolate our variable by using our inverse operations.  What.

Example 1 Solving Two-Step Equations SOLUTION a. 12x2x + 5 = Write original equation. 112x2x + – = 15 – Subtract 1 from each side. (Subtraction property.

Solve an equation 7y – 6y + 12 = 4y. Simplify 7y – 6y + 12 = 4y 7y – 6y + 12 = 4y becomes y + 12 = 4y when we combine like terms.

1.4 Solving Multi-Step Equations. To isolate the variable, perform the inverse or opposite of every operation in the equation on both sides of the equation.

Solving Multi-Step Equations Just remember to follow the steps 1.Distribute if you can 2.Collect all like terms to simplify 3.Get rid of the friend 4.Get.

Solving Two-Step and 3.1 Multi-Step Equations Warm Up

September 19, 2012 More multi-step equations and consecutive integer problems Warm-up: Do one group’s multi-step review sheet. When you are done, compare.

Solve inequalities that contain more than one operation.

ONE STEP EQUATIONS Multiplication and Division ONE STEP EQUATIONS Example 1 Solve 3x = 12 Variable? x 3x = 12 x x 3 ÷ 3 Inverse operation? Operation?

Holt McDougal Algebra Solving Equations with Variables on Both Sides 1-5 Solving Equations with Variables on Both Sides Holt Algebra 1 Warm Up Warm.

Do Now: Please finish word wall before you start equations

Solving Multi-Step Equations Using Inverse Operations.

Lesson 2-4: Solving Multi-Step Equations Algebra 1 CP Mrs. Mongold.

Warm Up Solve, showing all steps. 1. n + 9 = x = – z = n = 8 x = 7 z = 16 Course Solving Two-Step Equations = 9 y = 72 y8y8.

Solve a two-step equation by combining like terms EXAMPLE 2 Solve 7x – 4x = 21 7x – 4x = 21 Write original equation. 3x = 21 Combine like terms. Divide.

Solving Two-Step and Multi-Step Equations Warm Up Lesson Presentation

Holt McDougal Algebra 2 Multiplying and Dividing Rational Expressions Multiplying and Dividing Rational Expressions Holt Algebra 2Holt McDougal Algebra.

Solving Algebraic Equations. Equality 3 = = = 7 For what value of x is: x + 4 = 7 true?

1) Solve. -5t = 60 To get the variable by itself, which number needs to be moved? -5 To move the -5, you have to do the opposite operation. What operation.

Example: 2x+5x+6=20 Since there aren’t any parentheses, you need to combine your like terms which are 2x and 5x. After combining like terms, rewrite the.

1.4 Solving Equations.

2.3 Solving Multi-Step Equations

Solving Multistep Equations

Students will solve two step equations (12-4).

Solve for variable 3x = 6 7x = -21

Solving Equations by Factoring and Problem Solving

Do Now 1) t + 3 = – 2 2) 18 – 4v = 42.

Equations: Multi-Step Examples ..

GAME TIME: Solving 2-Step Equations

1.4 Solving Equations I’ve taught you how to solve equations the “simonized” way but here’s another way of doing the same thing!

Example 1: Equations with Variables on Each Side

8-8 Completing the Square Warm Up Lesson Presentation Lesson Quiz

Solving Equations Finding Your Balance

Solving Equations with Variables on Both Sides

Solving Equations with Variables on Both Sides

2.2 Solving Equations with Variables on Both Sides

Warmup Solve: a) 3 5 = 21

Solving Equations.

Exercise Solve and check x – 3 = 5. x = 8 8 – 3 = 5.

Solving Simple Two-Step Equations

Presentation transcript:

SOLVING MULTI-STEP EQUATIONS

BEFORE SOLVING A MULTI-STEP EQUATION YOU MAY HAVE TO SIMPLIFY. EXAMPLE 3x+5+6x-7=25 1 st step: Identify like terms. 3x+5+6x-7=25 2 nd step: combine like terms. 3x+5+6x-7=25 3x+6x=9x 5-7=-2 9x-2= x=27 3 rd step: Divide both sides by 9. 9x=279 X=3 Holt mcdougal,2010

CHECK OUR WORK EXAMPLE 3x+5+6x-7=25 3(3)+5+6(3)-7= = = =25 25=25

VARIABLES ON BOTH SIDES EQUATION: 2c+4-3c=-9+c+5 2c-3c=-1c -9+5=-4 -1c+4=-4+c +1c 4=-4+2c +4 8=2c2 4=c or c=4 2(4)+4-3(4)= =-9+9 0=0 Holt mcdougal,2010

VARIABLES ON BOTH SIDES EXAMPLE: 3V-8=7+8V -3v -3v NEW EQUATION: -8=7+5v NEW EQUATION: -15=5v 55 ANSWER: -3=v or v=-3 Holt mcdougal, 2010 Click to move on

TEST YOURSELF Are you ready to test yourself? Click here CLICKCLICK HERE

QUESTION SOLVE FOR X 3x+4x+6=20 Answer: X=3X=5 X=2X=9

GREAT JOB YOU ARE CORRECT. CLICK TO END PRESENTATION

WRONG ANSWER THE CORRECT ANSWER IS 2 3x+4x+6=20 7x+6=20 combine like terms 3x and 4x isolate the variable 7x= divide both sides by the variable. X=2 End presentation

REFERANCES Holt McDougal, copyright A division of Houghlin Mifflin Harcourt publishing company