(x-1)/2+x/3-(2-x)/6 = 7/6

解答

\frac{x - 1}{2} + \frac{x}{3} - \frac{2 - x}{6} = \frac{7}{6}

x = 2

求解步骤

\frac{x - 1}{2} + \frac{x}{3} - \frac{2 - x}{6} = \frac{7}{6}

乘以最小公倍数

3 (x - 1) + 2 x - (2 - x) = 7

展开

3 (x - 1) + 2 x - (2 - x) : 6 x - 5

6 x - 5 = 7

将

5

到右边

6 x = 12

两边除以

6

x = 2

5.3 = \frac{x}{4.6}

6 (x - 3) - 9 (x - 5) = x - 1

\frac{1}{12} c + \frac{1}{6} = - \frac{1}{3}

so l v e f or x, x + y - 2 z = 0

3 (4 x - 1) - 2 (5 x - 3) = 11 - 2 x + 16