3/7n-5=4

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Solution for 3/7n-5=4 equation: 


n in (-oo:+oo)

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

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

3/7*n-9 = 0 // + 9

3/7*n = 9 // : 3/7

n = 9/3/7

n = 21

n = 21

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