3=a/13

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Solution for 3=a/13 equation: 


a in (-oo:+oo)

3 = a/13 // - a/13

3-(a/13) = 0

3-1/13*a = 0 // - 3

-1/13*a = -3 // : -1/13

a = -3/(-1/13)

a = 39

a = 39

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