Question

if a+b / a-b = 4/5 then a/b = ? 1) 7 2) 6 3) -7 4) 4​

Answer 1

Answer:

if a+b / a-b = 4/5 then a/b = ? 1) 7 2) 6 3) -7 4) 4

Step-by-step explanation:

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Answer 2

(a+b)/(a-b) = 4/5

5(a+b) = 4(a-b)

5a+5b = 4a-4b

5a-4a = -5b-4b

1a = -9b

a/b = -9