5+7d-2d=25

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Solution for 5+7d-2d=25 equation: 


d in (-oo:+oo)

7*d-(2*d)+5 = 25 // - 25

7*d-(2*d)-25+5 = 0

7*d-2*d-25+5 = 0

5*d-20 = 0 // + 20

5*d = 20 // : 5

d = 20/5

d = 4

d = 4

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