90=7n+3/7n+6/7

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Solution for 90=7n+3/7n+6/7 equation: 


n in (-oo:+oo)

90 = 7*n+(3/7)*n+6/7 // - 7*n+(3/7)*n+6/7

90-(7*n)-((3/7)*n)-(6/7) = 0

(-3/7)*n-7*n-6/7+90 = 0

624/7-52/7*n = 0 // - 624/7

-52/7*n = -624/7 // : -52/7

n = -624/7/(-52/7)

n = 12

n = 12

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