3/7=a/49

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Solution for 3/7=a/49 equation: 


a in (-oo:+oo)

3/7 = a/49 // - a/49

3/7-(a/49) = 0

3/7-1/49*a = 0 // - 3/7

-1/49*a = -3/7 // : -1/49

a = -3/7/(-1/49)

a = 21

a = 21

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