20/30=x/9

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Solution for 20/30=x/9 equation: 


x in (-oo:+oo)

20/30 = x/9 // - x/9

20/30-(x/9) = 0

2/3-1/9*x = 0 // - 2/3

-1/9*x = -2/3 // : -1/9

x = -2/3/(-1/9)

x = 6

x = 6

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