7w+7=w+31 - solution

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

w in (-oo:+oo)

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

7*w-w-31+7 = 0

6*w-24 = 0 // + 24

6*w = 24 // : 6

w = 24/6

w = 4

w = 4

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