Two-Step Equations Lesson 7-1. Steps to Solving Equations 1. “Balance Out” To shift terms of an equation around the “=“ by addition or subtraction Goal:

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Objective: Students will be able to write and solve two- step equations with one variable!
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Presentation transcript:

Two-Step Equations Lesson 7-1

Steps to Solving Equations 1. “Balance Out” To shift terms of an equation around the “=“ by addition or subtraction Goal: to get variable terms on one side of “=“ and constants on the other 2. “Solve” Most often completed by multiplication or division

Two-Step Equations 3n – 6 = n= 21 n = 7 y - 9 = y = y = y = -21

Two-Step Equations *cannot have a negative variable 5 – m = m = 12 m = -12 * multiply/divide by (-1) on both sides 5 = -x = -x 3 a) -15 = -x b) 15 = x 15 = x

Practice a) 15x + 3 = 48 b) t - 10 = -6 4 c) -a + 6 = 8 d) 13 – 6f = 31

Homework p #12-24 even, all