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: 4


The solution is -5

Work Step by Step

5x-3 =2x-18 Add 3 to both sides 5x-3 +3=2x-18 +3 Simplify 5x= 2x -15 Subtract 2x from both sides 5x-2x=2x-15-2x Simplify 3x= -15 Divide both sides by 3 $\frac{3x}{3}$=$\frac{-15}{3}$ x=-5 The solution is -5 Check 5x-3 =2x-18 5(-5)-3 =2(-5)-18 -25-3 = -10-18 -28=-28
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