Simplify Expressions 34 A number divided by 3 is 7. n ÷ 3 = 7.

Slides:

Advertisements

Similar presentations

Linear Equations with Different Kinds of Solutions

Advertisements

3-5 Solving Equations with the variable on each side Objective: Students will solve equations with the variable on each side and equations with grouping.

Solve an equation with variables on both sides

Intro to Algebra/Geometry Solving Equations by Adding or Subtracting.

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

Section 3.2 Beginning on page 104

Solve the equation -3v = -21 Multiply or Divide? 1.

1.4 Solving Equations ●A variable is a letter which represents an unknown number. Any letter can be used as a variable. ●An algebraic expression contains.

Daily Homework Quiz Simplify the expression. 1. ()() 7+t6 – 4 – t b+20a – 8b8b – 15a ANSWER 72 ANSWER 6b6b+5a5a– 3t3t78 – 3.Evaluate when 2x2x ()2)2.

3-2 Solving Equations by Using Addition and Subtraction Objective: Students will be able to solve equations by using addition and subtraction.

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

Equation y + 5 y + 5 = 20 Expressions

1.3 Solving Linear Equations

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.

1.6. DEFINITIONS  An equation is a statement that two expressions are equal.  Usually contains 1 or more variables  A variable is a symbol that represents.

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 One-Step Equations © 2007 by S - Squared, Inc. All Rights Reserved.

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.

How do I use the imaginary unit i to write complex numbers?

$100 $200 $300 $400 $100 $200 $300 $400 $300 $200 $100 Writing variable equations Find variables in addition equations Find variables in subtraction.

2.4 Equations with Variables on Both Sides To solve an equation with variables on both sides, you must use the Addition or Subtraction Properties of Equality.

Lesson 8.1. » A statement where two mathematical expressions are. » Think of an equation as a balance scale or teeter-totter. The left side must always.

Opener: Find three consecutive odd integers whose sum is -63 Integer #1 = n Integer #2 = n + 2 Integer #3 = n + 4 (n) + (n + 2) + (n + 4) = -63 3n + 6.

Equations and Inequalities. Unit 8 – Solving Inequalities.

Substitution Method: Solve the linear system. Y = 3x + 2 Equation 1 x + 2y=11 Equation 2.

1.4 Solving Equations.

3. 3 Solving Equations Using Addition or Subtraction 3

Rational Expressions and Equations

6-3: Solving Equations with variables on both sides of the equal sign

Simplifying Expressions

Chapter 2 Vocabulary Equations.

Solving Equations with the Variable on Each Side

Equations with variables on both sides Whiteboard practice

3-2: Solving Systems of Equations using Substitution

6-2 Solving Systems By Using Substitution

6-2 Solving Systems Using Substitution

Solving One Step Equations

Solving Systems using Substitution

6-3 Solving Systems Using Elimination

Solving Algebraic Equations

3-2: Solving Systems of Equations using Substitution

Solving Systems of Equations using Substitution

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

What is an equation? An equation is a mathematical statement that two expressions are equal. For example, = 7 is an equation. Note: An equation.

EQ: How do I solve an equation in one variable?

3-2: Solving Systems of Equations using Substitution

2 Understanding Variables and Solving Equations.

Equations with Variables on Both Sides Day 2

1.3 Solving Linear Equations

Equations with variables on both sides Whiteboard practice

Warm Up Solve for x. Simplify Simplify

the value of the variable that makes an equation true

TWO STEP EQUATIONS 1. SOLVE FOR X 2. DO THE ADDITION STEP FIRST

3-2: Solving Systems of Equations using Substitution

Equations …. are mathematical sentences stating that two expressions are equivalent.

Algebra 1 Section 2.4.

Algebra 1 Section 2.7.

2-3 Equations With Variables on Both Sides

Solving Equations.

Equations Systems.

3-2: Solving Systems of Equations using Substitution

3-2: Solving Systems of Equations using Substitution

Notes Over Using Radicals

3-2: Solving Systems of Equations using Substitution

3-2: Solving Systems of Equations using Substitution

Presentation transcript:

Simplify Expressions 34 A number divided by 3 is 7. n ÷ 3 = 7

Simplify Expressions 36 The sum of b and 8 equals 25. b + 8 = 25

Addition & Subtraction Equations

7 + 5 12 = 7 + 5 − 5 = 12 − 5 7 = 7

7 + 5 12 = 7 + 5 − 7 = 12 − 7 5 = 5

The sum of a number and 5 equals 8. = 3 n = 3

the value of the variable that makes an equation true solution the value of the variable that makes an equation true

4 + x = 15 4 − 4 + x = 15 − 4 x = 11 4 + 11 = 15

Solving Addition & Subtraction Equations

n + 6 = 10 n + 6 − 6 = 10 − 6 n = 4

7 = 2 + n 7 − 2 = 2 − 2 + n 5 = n n = 5

x − 4 = 2 x − 4 + 4 = 2 + 4 x = 6 6 − 4 = 2

a + 3 + 7 = 12 a + 10 = 12 a + 10 − 10 = 12 − 10 a = 2

9.4 − 2 + d = 13 d + 7.4 = 13 7.4 + d = 13 d + 7.4 − 7.4 = 13 − 7.4 d = 5.6 9.4 − 2 + 5.6 = 13

6 13 8 13 z − = 6 13 6 13 8 13 6 13 z − + = + 14 13 z = 1 13 z = 1

Addition & Subtraction Equations 15 f − 17 = 9 f = 2.6 no f = 26 2.6 f − 17 = 9 f − 17 + 17 = 9 + 17 f = 26

Complete #1−44 (even) on Student Text pp. 220−21.