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

解答

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

x = 2 \frac{4}{11}

十进制

x = 2.36363 \dots

求解步骤

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

将带分数转换为假分式:

3 \frac{2}{3} = \frac{11}{3}

\frac{3 x}{2} + \frac{x - 2}{3} = \frac{11}{3}

乘以最小公倍数

9 x + 2 (x - 2) = 22

乘开

2 (x - 2) : 2 x - 4

9 x + 2 x - 4 = 22

so l v e f or x, y^{3} - 2 x y + 7 = 3 x + 1

lo g_{10} (987) = a

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

\frac{3 ( \frac{- 2 - ( - 6 )}{3} )}{8} (11 + 3 x + 5 x) = - 2.5

90 + 40 + x + 57 = 180