-15=-7w+5w-3

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Solution for -15=-7w+5w-3 equation: 


w in (-oo:+oo)

-15 = 5*w-7*w-3 // - 5*w-7*w-3

3-(-7*w)-(5*w)-15 = 0

7*w-5*w-15+3 = 0

2*w-12 = 0 // + 12

2*w = 12 // : 2

w = 12/2

w = 6

w = 6

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