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: 19

Answer

$x=1$

Work Step by Step

$3(5-x)=4(2x+1)$ $3(5)-3(x)=4(2x)+4(1)$ $15-3x=8x+4$ $15=8x+3x+4$ $15=11x+4$ $15-4=11x$ $11=11x$ $\frac{11}{11}=x$ $1=x$ $x=1$ Check the answer. 3(5-1)=4(2(1)+1) 3(4)=4(2+1) 12=4(3) 12=12
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