-7d+1=7d-139

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Solution for -7d+1=7d-139 equation: 


d in (-oo:+oo)

1-7*d = 7*d-139 // - 7*d-139

1-7*d-(7*d)+139 = 0

1-7*d-7*d+139 = 0

140-14*d = 0 // - 140

-14*d = -140 // : -14

d = -140/(-14)

d = 10

d = 10

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