2-4/7d-1/2d=89/7

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Solution for 2-4/7d-1/2d=89/7 equation: 


d in (-oo:+oo)

2-((4/7)*d)-((1/2)*d) = 89/7 // - 89/7

2-((4/7)*d)-((1/2)*d)-(89/7) = 0

(-4/7)*d+(-1/2)*d-89/7+2 = 0

-15/14*d-75/7 = 0 // + 75/7

-15/14*d = 75/7 // : -15/14

d = 75/7/(-15/14)

d = -10

d = -10

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