4x-1/3 (15x-3(-1+2x))= 3/2 (9-x-6)

解答

4 x - \frac{1}{3} (15 x - 3 (- 1 + 2 x)) = \frac{3}{2} (9 - x - 6)

x = \frac{11}{5}

十进制

x = 2.2

求解步骤

4 x - \frac{1}{3} (15 x - 3 (- 1 + 2 x)) = \frac{3}{2} (9 - x - 6)

\frac{1}{3} (15 x - 3 (- 1 + 2 x)) = \frac{15 x - 3 ( - 1 + 2 x )}{3}

4 x - \frac{15 x - 3 ( - 1 + 2 x )}{3} = \frac{3}{2} (9 - x - 6)

乘以最小公倍数

24 x - 6 (3 x + 1) = 9 (- x + 3)

乘开

- 6 (3 x + 1) : - 18 x - 6

24 x - 18 x - 6 = 9 (- x + 3)

2 x - 9 > 8 x - 21

- 6 x > - 10

s im pl i f y (27 \cdot 64)^{\frac{2}{3}}

(14 + 2 x) (26 + 2 x) = 1408

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