n*2/5-3=7 - solution

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Solution for n*2/5-3=7 equation:

n in (-oo:+oo)

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

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

2/5*n-10 = 0 // + 10

2/5*n = 10 // : 2/5

n = 10/2/5

n = 25

n = 25

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