((x-2))/3-((3x-1))/4 =x+((3x+2))/5

解答

\frac{( x - 2 )}{3} - \frac{( 3 x - 1 )}{4} = x + \frac{( 3 x + 2 )}{5}

x = - \frac{49}{121}

十进制

x = - 0.40495 \dots

求解步骤

\frac{( x - 2 )}{3} - \frac{( 3 x - 1 )}{4} = x + \frac{( 3 x + 2 )}{5}

\frac{x - 2}{3} - \frac{3 x - 1}{4} = x + \frac{3 x + 2}{5}

乘以最小公倍数

20 (x - 2) - 15 (3 x - 1) = 60 x + 12 (3 x + 2)

乘开

12 (3 x + 2) : 36 x + 24

- 25 x - 25 = 60 x + 36 x + 24

f a c t or 3 x^{2} - 6 x - 240

f a c t or - 2 - 2 i

x^{2} (x - 1) < 6 x

\frac{h}{- 2} > 6

s im pl i f y 6 \frac{g ^{6} h}{h ^{7}}