21/30=x/100

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Solution for 21/30=x/100 equation: 


x in (-oo:+oo)

21/30 = x/100 // - x/100

21/30-(x/100) = 0

7/10-1/100*x = 0 // - 7/10

-1/100*x = -7/10 // : -1/100

x = -7/10/(-1/100)

x = 70

x = 70

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