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Envision Math 2.0: Grade 7, Volume 2

EM

Envision Math 2.0: Grade 7, Volume 2 View details

2. Solve Two-Step Equations

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Exercise 10 Page 263

Gather all of the variable terms on one side of the equation and all of the constant terms on the other side.

p=4.5

Practice makes perfect

To solve an equation, we should first gather all of the variable terms on one side and all of the constant terms on the other side using the Properties of Equality. In this case, we need to use the Addition and the Division Property of Equality to solve the equation.

0.5p - 3.45 = -1.2

LHS+3.45=RHS+3.45

0.5p = -1.2 + 3.45

Add terms

0.5p = 2.25

.LHS /0.5.=.RHS /0.5.

p = 2.25/0.5

Calculate quotient

p=4.5

Subchapter links

Do You Understand? p.262

Do You Know How? p.262

Practice & Problem Solving p.263-264

Assessment Practice p.264