-65=-5d-2d-2

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Solution for -65=-5d-2d-2 equation: 


d in (-oo:+oo)

-65 = -5*d-(2*d)-2 // + -5*d-(2*d)-2

2*d-(-5*d)-65+2 = 0

5*d+2*d-65+2 = 0

7*d-63 = 0 // + 63

7*d = 63 // : 7

d = 63/7

d = 9

d = 9

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