7w-8=20

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Solution for 7w-8=20 equation: 


w in (-oo:+oo)

7*w-8 = 20 // - 20

7*w-20-8 = 0

7*w-28 = 0 // + 28

7*w = 28 // : 7

w = 28/7

w = 4

w = 4

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