21/27=x/18 - solution

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Solution for 21/27=x/18 equation:

x in (-oo:+oo)

21/27 = x/18 // - x/18

21/27-(x/18) = 0

7/9-1/18*x = 0 // - 7/9

-1/18*x = -7/9 // : -1/18

x = -7/9/(-1/18)

x = 14

x = 14

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