Answer
$x=4$
Work Step by Step
$12/(x+2) = 4/(x-2)$
$12*(x-2)=4*(x+2)$
$12x-24 = 4x+8$
$8x-24=8$
$8x=32$
$8x/8 =32/8$
$x=4$
$12/(x+2) = 4/(x-2)$
$12/(4+2) = 4/(4-2)$
$12/6 = 4/2$
$2=2$ (true)
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 7 - Section 7.6 - Proportions and Problem Solving with Rational Equations - Exercise Set - Page 537: 18
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