x-(2x-1)/3 =(3x-5)/5

解答

x - \frac{2 x - 1}{3} = \frac{3 x - 5}{5}

x = 5

求解步骤

x - \frac{2 x - 1}{3} = \frac{3 x - 5}{5}

乘以最小公倍数

15 x - 5 (2 x - 1) = 3 (3 x - 5)

乘开

- 5 (2 x - 1) : - 10 x + 5

15 x - 10 x + 5 = 3 (3 x - 5)

3 x (x - 3) + 5 (x + 7) - x (x + 1) - 2 (x^{2} + 7) + 4 = 0

s im pl i f y \frac{13}{2} - 5

s im pl i f y \frac{a - b}{b - a}

s im pl i f y \frac{1}{- \frac{1}{3}}

5 - \frac{3}{4} x \leq - 4