21/25=x/75

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Solution for 21/25=x/75 equation: 


x in (-oo:+oo)

21/25 = x/75 // - x/75

21/25-(x/75) = 0

21/25-1/75*x = 0 // - 21/25

-1/75*x = -21/25 // : -1/75

x = -21/25/(-1/75)

x = 63

x = 63

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