4/9=x/45 - solution

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Solution for 4/9=x/45 equation:

x in (-oo:+oo)

4/9 = x/45 // - x/45

4/9-(x/45) = 0

4/9-1/45*x = 0 // - 4/9

-1/45*x = -4/9 // : -1/45

x = -4/9/(-1/45)

x = 20

x = 20

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