70/21=x/9

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Solution for 70/21=x/9 equation: 


x in (-oo:+oo)

70/21 = x/9 // - x/9

70/21-(x/9) = 0

10/3-1/9*x = 0 // - 10/3

-1/9*x = -10/3 // : -1/9

x = -10/3/(-1/9)

x = 30

x = 30

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