5x+(4+4x)/2 =23

解答

5 x + \frac{4 + 4 x}{2} = 23

x = 3

求解步骤

5 x + \frac{4 + 4 x}{2} = 23

在两边乘以

2

14 x + 4 = 46

将

4

到右边

14 x = 42

两边除以

14

x = 3

2 x + 3 (x - 4) = 2 (x - 3)

- 4 x - 1 + 5 x = 9 x + 3 - 7 x

f a c t or 5 b r - 25 b + 2 r - 10

\frac{x}{3} - \frac{x}{9} = 6

\frac{1}{0.013} = K + \frac{1}{0.19}