Answer
x=5
Work Step by Step
$\frac{3}{x+1}=\frac{1}{2}$ cross multiply
$3\times2=1(x+1)$ simplify
$6=x+1$ subtract 1 from both sides
$6-1=x+1-1$ simplify
$5=x$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 2 - Solving Equations - 2-7 Solving Proportions - Lesson Check - Page 127: 4
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