n-(1/7n)=18

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Solution for n-(1/7n)=18 equation: 


n in (-oo:+oo)

n-((1/7)*n) = 18 // - 18

n-((1/7)*n)-18 = 0

n+(-1/7)*n-18 = 0

6/7*n-18 = 0 // + 18

6/7*n = 18 // : 6/7

n = 18/6/7

n = 21

n = 21

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