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 - Page 141: 17

Answer

$x=4$

Work Step by Step

$5(2x+1)=12x-3$ $5(2x)+5(1)=12x-3$ $10x+5=12x-3$ $5=12x-10x-3$ $5=2x-3$ $5+3=2x$ $8=2x$ $\frac{8}{2}=x$ $4=x$ Check the answer. 5(2(4)+1)=12(4)-3 5(8+1)=48-3 5(9)=45 45=45
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