-7=w+2w+8

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Solution for -7=w+2w+8 equation: 


w in (-oo:+oo)

-7 = w+2*w+8 // - w+2*w+8

-w-(2*w)-8-7 = 0

-w-2*w-8-7 = 0

-3*w-15 = 0 // + 15

-3*w = 15 // : -3

w = 15/(-3)

w = -5

w = -5

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