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Elementary Algebra

Lynn Marecek, MaryAnne Anthony-Smith

$Math Studyset Vaia Explanations$ Math

2nd Edition · 1240 pages

ISBN: 9780998625713

Chapter 2: Q. 2.11 (page 209)

$Solve: 8 y - 4 - 7 y - 7 = 4$

Short Answer

Expert verified

The solution for the given equation is $y = 15$ .

Step by step solution

Step 1. Given information

The given equation is $8 y - 4 - 7 y - 7 = 4$ .

We have to solve the given equation.

Step 2. Explanation

$\begin{array}{l} \Rightarrow 8 y - 4 - 7 y - 7 = 4 \\ Rearrangetheterms \\ \Rightarrow 8 y - 7 y - 7 - 4 = 4 \\ Simplifedasmuchaspossible \\ \Rightarrow y - 11 = 4 \\ Add11boththeside \\ \Rightarrow y - 11 + 11 = 4 + 11 \\ \Rightarrow y = 15 \end{array}$