18/30=x/15

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Solution for 18/30=x/15 equation: 


x in (-oo:+oo)

18/30 = x/15 // - x/15

18/30-(x/15) = 0

3/5-1/15*x = 0 // - 3/5

-1/15*x = -3/5 // : -1/15

x = -3/5/(-1/15)

x = 9

x = 9

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