How do you solve $\frac{n - 8}{n} = \frac{7}{9}$ $(n-8)/n=7/9$ ?

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Answer 1 · 2016-07-17T18:02:21

$n = 36$ $n = 36$

The fact that there is an equation with one fraction on each side means we can cross multiply.

$\frac{n - 8}{n} = \frac{7}{9}$ $(n-8)/n=7/9$

$9 \times (n - 8) = 7 \times n$ $9xx(n-8) = 7xxn$

$9 n - 72 = 7 n$ $9n - 72 = 7n$

$2 n = 72$ $2n = 72$

$n = 36$ $n = 36$

How do you solve n−8n=79(n-8)/n=7/9?