7w-7+6w=84

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Solution for 7w-7+6w=84 equation: 


w in (-oo:+oo)

7*w+6*w-7 = 84 // - 84

7*w+6*w-84-7 = 0

13*w-91 = 0 // + 91

13*w = 91 // : 13

w = 91/13

w = 7

w = 7

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