-9=x/7

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Solution for -9=x/7 equation: 


x in (-oo:+oo)

-9 = x/7 // - x/7

-(x/7)-9 = 0

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

-1/7*x = 9 // : -1/7

x = 9/(-1/7)

x = -63

x = -63

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