-30=-7w+2w-10

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Solution for -30=-7w+2w-10 equation: 


w in (-oo:+oo)

-30 = 2*w-7*w-10 // - 2*w-7*w-10

10-(-7*w)-(2*w)-30 = 0

7*w-2*w-30+10 = 0

5*w-20 = 0 // + 20

5*w = 20 // : 5

w = 20/5

w = 4

w = 4

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