7/4a=21

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Solution for 7/4a=21 equation: 


a in (-oo:+oo)

(7/4)*a = 21 // - 21

(7/4)*a-21 = 0

7/4*a-21 = 0 // + 21

7/4*a = 21 // : 7/4

a = 21/7/4

a = 12

a = 12

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