braidenroach braidenroach

21-11-2022
Mathematics

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If [tex]\frac{a+b}{2a-b} = \frac{5}{4}[/tex] and [tex]\frac{b}{a+9} =\frac{5}{9}[/tex], find the value of b.

A. 5
B. 18
C. 30
D. 45
(Answer is A. 5)

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