7w-4=2w+21

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Solution for 7w-4=2w+21 equation: 


w in (-oo:+oo)

7*w-4 = 2*w+21 // - 2*w+21

7*w-(2*w)-21-4 = 0

7*w-2*w-21-4 = 0

5*w-25 = 0 // + 25

5*w = 25 // : 5

w = 25/5

w = 5

w = 5

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