Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 3 - Section 3.3 - Solving Linear Equations in One Variable - Exercise Set - Page 189: 46


The solution is 5

Work Step by Step

6y -8 =3y+7 Add 8 to both sides 6y -8+8 =3y+7+8 6y=3y+15 Subtract 3y from both sides 6y-3y=3y+15 -3y 3y =15 Divide by 3 on both sides $\frac{3y}{3}$=$\frac{15}{3}$ y=5 The solution is 5 Check 6y -8=3y+7 6$\times$5 -8=3$\times$5+7 Replace x with 5 30-8=15+7 22=22
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