8/4=a/9

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Solution for 8/4=a/9 equation: 


a in (-oo:+oo)

8/4 = a/9 // - a/9

8/4-(a/9) = 0

2-1/9*a = 0 // - 2

-1/9*a = -2 // : -1/9

a = -2/(-1/9)

a = 18

a = 18

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