u/9=7

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Solution for u/9=7 equation: 


u in (-oo:+oo)

u/9 = 7 // - 7

u/9-7 = 0

1/9*u-7 = 0 // + 7

1/9*u = 7 // : 1/9

u = 7/1/9

u = 63

u = 63

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