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: 87

Answer

$x=10.5$

Work Step by Step

$(-8)^2+3x=5x+43$ $\longrightarrow$resolve exponent $64+3x=5x+43$ $\longrightarrow$addition property $64+3x-3x-43=5x+43-3x-43$ $\longrightarrow$simplify $21=2x$ $\longrightarrow$multiplication property $21\div2=2x\div2$ $\longrightarrow$simplify $10.5=x$
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