## Algebra 1: Common Core (15th Edition)

Published by Prentice Hall

# Chapter 2 - Solving Equations - 2-2 Solving Two-Step Equations - Practice and Problem-Solving Exercises - Page 91: 28

#### Answer

$z=8$

#### Work Step by Step

We need to get the z alone. In order to cancel out division, we use multiplication, so we multiply both sides by 9 to get that $z+10=18$. We now cancel out the addition by subtracting 10 on both sides, giving us a final answer of $z=8$. We plug 8 in for z and confirm that our answer is, indeed, correct.

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