42/54=x/9 - solution

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Solution for 42/54=x/9 equation:

x in (-oo:+oo)

42/54 = x/9 // - x/9

42/54-(x/9) = 0

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

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

x = -7/9/(-1/9)

x = 7

x = 7

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