-4w-9=-20+7w

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Solution for -4w-9=-20+7w equation: 


w in (-oo:+oo)

-4*w-9 = 7*w-20 // - 7*w-20

20-4*w-(7*w)-9 = 0

20-4*w-7*w-9 = 0

11-11*w = 0 // - 11

-11*w = -11 // : -11

w = -11/(-11)

w = 1

w = 1

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