4/12=x/15

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Solution for 4/12=x/15 equation:


x in (-oo:+oo)

4/12 = x/15 // - x/15

4/12-(x/15) = 0

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

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

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

x = 5

x = 5

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