Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 2 - Section 2.1 - The Addition Property of Equality - Exercise Set - Page 120: 54



Work Step by Step

7x+3=6(x-1)+9 First use the distributive property on the parentheses 7x+3=6(x)-6(1)+9 7x+3=6x-6+9 7x+3=8x+3 Then subtract 7x from both sides 3=8x-7x+3 3=x+3 Then subtract 3 from both sides 3-3=x 0=x x=0 Check the answer 7(0)+3=6(0-1)+9 0+3=6(-1)+9 3=-6+9 3=3
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