7w+1+3w=31

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Solution for 7w+1+3w=31 equation: 


w in (-oo:+oo)

7*w+3*w+1 = 31 // - 31

7*w+3*w-31+1 = 0

10*w-30 = 0 // + 30

10*w = 30 // : 10

w = 30/10

w = 3

w = 3

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