-7w+8=78

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Solution for -7w+8=78 equation: 


w in (-oo:+oo)

8-7*w = 78 // - 78

8-7*w-78 = 0

-7*w-70 = 0 // + 70

-7*w = 70 // : -7

w = 70/(-7)

w = -10

w = -10

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