42/54=x/63

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Solution for 42/54=x/63 equation: 


x in (-oo:+oo)

42/54 = x/63 // - x/63

42/54-(x/63) = 0

7/9-1/63*x = 0 // - 7/9

-1/63*x = -7/9 // : -1/63

x = -7/9/(-1/63)

x = 49

x = 49

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