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 2.3 - Solving Linear Equations - Exercise Set: 23

Answer

x=5

Work Step by Step

3(x+1)=7(x-2)-3 3(x)+3(1)=7(x)-7(2)-3 3x+3=7x-14-3 3x+3=7x-17 3x-7x+3=-17 -4x+3=-17 -4x=-20 x=$\frac{-20}{-4}$ x=5 Check the answer. 3(5+1)=7(5-2)-3 3(6)=7(3)-3 18=21-3 18=18
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