# Chapter 1 - Foundations for Algebra - 1-8 An Introduction to Equation - Mixed Review - Page 58: 84

y=-1

#### Work Step by Step

Mental math tells us that y must be negative. $\underline y\ \ \ \ \underline{10+10y}$ $-2\ \ \ \ \ \ -10$ $-1\ \ \ \ \ \ \ \ \ \ \ \ \ 0\longrightarrow$ -1 is the solution

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