Answer
A
Work Step by Step
$3/7 = (2b)/(4b+2)$
$3*(4b+2)=7*2b$
$12b + 6 = 14b$
$12b + 6-12b = 14b-12b$
$6 = 2b$
$6/2 = 2b/2$
$3 = b$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 10 - Radical Expressions and Equations - 10-6 Trigonometric Ratios - Standardized Test Prep - Page 639: 48
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