3-2d+4d=15

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Solution for 3-2d+4d=15 equation: 


d in (-oo:+oo)

4*d-(2*d)+3 = 15 // - 15

4*d-(2*d)-15+3 = 0

4*d-2*d-15+3 = 0

2*d-12 = 0 // + 12

2*d = 12 // : 2

d = 12/2

d = 6

d = 6

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