3n/5-9=21 - solution

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Solution for 3n/5-9=21 equation:

n in (-oo:+oo)

(3*n)/5-9 = 21 // - 21

(3*n)/5-21-9 = 0

3/5*n-30 = 0 // + 30

3/5*n = 30 // : 3/5

n = 30/3/5

n = 50

n = 50

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