Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 1 - Solving Linear Equations - 1.2 - Solving Multi-Step Equations - Exercises - Page 16: 11

Answer

$y=4$

Work Step by Step

$$\begin{align*} 11y&=44 &\text{Combine like terms.}\\ \\\frac{11y}{11}&=\frac{44}{11} &\text{Divide both sides by 11.}\\ \\y&=4&\text{Simplify.} \end{align*}$$ Check the answer by substituting $4$ to the variable in the given equation. $$\begin{align*} 8y+3y&=44\\ 8(4)+3(4)&\stackrel{?}{=}44\\ 32+12&\stackrel{?}{=}44\\ 44&\stackrel{\checkmark}{=}44 \end{align*}$$ Thus, the solution is $y=4$.
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