4/5a=3/7

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Solution for 4/5a=3/7 equation: 


a in (-oo:+oo)

(4/5)*a = 3/7 // - 3/7

(4/5)*a-(3/7) = 0

(4/5)*a-3/7 = 0

4/5*a-3/7 = 0 // + 3/7

4/5*a = 3/7 // : 4/5

a = 3/7/4/5

a = 15/28

a = 15/28

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