2=(x-21.4)/(5.1)

解答

2 = \frac{x - 21.4}{5.1}

x = 31.6

求解步骤

2 = \frac{x - 21.4}{5.1}

交换两边

\frac{x - 21.4}{5.1} = 2

在两边乘以

5.1

x - 21.4 = 10.2

将

21.4

到右边

x = 31.6

s im pl i f y - - 24 (6 - - 3)

x + 5 \leq 8

- \frac{2}{3} x = 8

f a c t or x^{2} + 20 x + 72 + 3 x

f a c t or 6 p^{2} - 11 p - 10