n/8 = 11/5

解答

\frac{n}{8} = \frac{11}{5}

n = \frac{88}{5}

十进制

n = 17.6

求解步骤

\frac{n}{8} = \frac{11}{5}

在两边乘以

8

n = \frac{88}{5}

9 x^{2} - 18 = 7

s im pl i f y 3 e (3 + \frac{iπ}{6})

- \frac{7}{4} = \frac{2}{5} t

(8 + 2 x) (26 + 2 x) = 448

s im pl i f y \frac{4}{5 - 3}