Asked by Alex Z

If (x+2)/2=y/5, then which of the following must be true?
x/2=(y-2)/5
x/2=(y-5)/5
(x+2)/5=y/25
Answered by Steve
cross-multiply:

5(x+2) = 2y
5x + 10 = 2y
5x = 2y - 10
5x/2 = y - 5
x/2 = (y-5)/5
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