One-Step Equations with Subtraction

Slides:

Advertisements

Similar presentations

Solve an equation with variables on both sides

Advertisements

Solving Linear Equations Adapted from Walch Education.

Solve an equation using subtraction EXAMPLE 1 Solve x + 7 = 4. x + 7 = 4x + 7 = 4 Write original equation. x + 7 – 7 = 4 – 7 Use subtraction property of.

Standardized Test Practice

Step 1: Simplify Both Sides, if possible Distribute Combine like terms Step 2: Move the variable to one side Add or Subtract Like Term Step 3: Solve for.

Standardized Test Practice

Solve Equations with Variables on Both Sides

EXAMPLE 2 Rationalize denominators of fractions Simplify

Warm Up  – Evaluate.  (0.29)

Solve a logarithmic equation

Systems of Equations 7-4 Learn to solve systems of equations.

Evaluating Algebraic Expressions 1-7 Solving Equations by Adding or Subtracting Preparation for AF4.0 Students solve simple linear equations and inequalities.

3.2 Solving Equations by Using Addition and Subtraction Addition Property of Equality –If the same number is added to each side of an equation, the resulting.

Lesson 1-8 Solving Addition and Subtraction Equations.

Solve an equation using addition EXAMPLE 2 Solve x – 12 = 3. Horizontal format Vertical format x– 12 = 3 Write original equation. x – 12 = 3 Add 12 to.

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

Solving Linear Equations Substitution. Find the common solution for the system y = 3x + 1 y = x + 5 There are 4 steps to this process Step 1:Substitute.

Warm Up Solve. 1. 3x = = z – 100 = w = 98.6 x = 34 y = 225 z = 121 w = 19.5 y 15.

Use the substitution method

Solve one step equations. You can add the same amount to both sides of an equation and the statement will remain true = = 9 x = y +

Solve Equations With Variables on Both Sides. Steps to Solve Equations with Variables on Both Sides  1) Do distributive property  2) Combine like terms.

1.7 Intro to Solving Equations Objective(s): 1.) to determine whether an equation is true, false, or open 2.)to find solutions sets of an equation 3.)to.

Solving Systems by Substitution (isolated) Solving Systems by Substitution (not isolated)

Holt McDougal Algebra Solving Equations by Adding or Subtracting Warm Up Evaluate. 1.   (0.29) Give the opposite of each number.

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

Opener (5 + 6) • 2 a + (b + c) + (d • e) 18k x2 + 5x + 4y + 7

Balancing Equations The student will be able to: solve equations using addition and subtraction.

Solving Equations by 1-2 Adding or Subtracting Warm Up

Solving Equations by 1-2 Adding or Subtracting Warm Up

Solving Equations by 2-1 Adding or Subtracting Warm Up

EXAMPLE 2 Rationalize denominators of fractions Simplify

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

Warm up 11/1/ X ÷ 40.

Warm-Up Solve the system by substitution..

Solving Division Equations.

Solving Systems of Equations by Elimination

One-Step Equations with Addition and Subtraction

Solving Equations by 1-2 Adding or Subtracting Warm Up

Solve an equation by combining like terms

Chapter 3-3 Solve Equations by Adding/Subtracting

1.3 Solving Linear Equations

Welcome back! Warm-Up… Quickwrite… Add or subtract

Multi-Step Equations TeacherTwins©2014.

Solving Two-Step Equations

Solving Multi-Step Equations

Solving One and Two Step Equations

Multi-Step Equations TeacherTwins©2014.

Solving One Step Equations

Warm Up Solve. 1. 2x + 9x – 3x + 8 = –4 = 6x + 22 – 4x 3. + = 5

1.  2.  (0.29) Give the opposite of each number. 

Solving Equations Finding Your Balance

Solving Equations by Adding or Subtracting Warm Up Lesson Presentation

ONE STEP EQUATIONS Addition and Subtraction

Bell work Week 20.

Solving Equations by 1-2 Adding or Subtracting Warm Up

ONE STEP EQUATIONS Addition and Subtraction

Solving Equations by 2-1 Adding or Subtracting Warm Up

Solving Equations by 1-2 Adding or Subtracting Warm Up

Warm-Up Solve the system by graphing..

Solving Equations by Adding or Subtracting Warm Up Lesson Presentation

2-3 Equations With Variables on Both Sides

3-2 Solving Inequalities Using Addition and Subtraction

Solving Equations by 1-2 Adding or Subtracting Warm Up

2-5 Solving Equations with the Variable on Each Side

Solving basic equations

Solving Equations by 2-1 Adding or Subtracting Warm Up

One-Step Equations with Addition and Subtraction

Warm-Up Problems Unit 0.

Definition of logarithm

Solving Equations by 2-1 Adding or Subtracting Warm Up

Presentation transcript:

One-Step Equations with Subtraction

Warm Up Evaluate the expression. 4a + 7b – 8 if a = 4 and b=2 15x – 2(x + 9) if x = 2 5a + 4 if a = 6 3x – x + 5y if x =5 and y= 1 22 8 34 15

One-Step Equations with Subtraction

+2 +2 x = 8 Review Example 1: x - 2 = 6 +2 +2 x = 8 You use the addition property of equality to add 2 to both sides in order to get the “x” by itself. To check to see if your answer is correct, substitute 8 in the place of x in your equation. Solve the equation. If it is true then the value for x is correct.

Ex. 2: y – 6 = 12 You use the addition property of equality to add 6 to both sides in order to get the “y” by itself. +6 +6 y = 18 To check to see if your answer is correct, substitute 18 in the place of y in your equation. Solve the equation. If it is true then the value for y is correct

Practice x - 9 = 24 a – 6 = 86 y - 5 = 24 m - 13 = 33 x = 33 a = 92 y = 29 m = 46

Closure Explain how to solve x – 23 = 243.