7n/4=21

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Solution for 7n/4=21 equation: 


n in (-oo:+oo)

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

(7*n)/4-21 = 0

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

7/4*n = 21 // : 7/4

n = 21/7/4

n = 12

n = 12

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