SOLUTION: 7 10 -- = ---- d+5 d=2

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Question 34094: 7 10
-- = ----
d+5 d=2
Answer by sarah_adam(201) About Me  (Show Source):
You can put this solution on YOUR website!
7%2F%28d%2B5%29 = 10%2F%28d-2%29
cross multiply
7(d - 2) = 10 (d+5)
7d - 14 = 10d + 50
10d - 7d = -50 + 14
3d = - 36
d = -36/3 = -12