X分之14减去X-2分之12等于0.03-搜答案-大师作文网

把x移到一边3分之2减3等于8x减2分之1x-7/3=15x/2x=-14/45

x-5/8+1/12=2/3x=5/8-1/12+2/3x=15/24-2/24+16/24x=29/24

x+1分之x+2减去x+3分之x+4=x+5分之x+6减去X+7分之x+8方程两边分别通分,得[(x+2)(x+3)-(x+1)(x+4)]/[(x+1)(x+3)]=[(x+6)(x+7)-(x+8

你要说的是：（x+2）分之（x+1）减去（x+3）分之（x+2）等于(x+7)分之1减去(x+6)分之1解方程(x+1)/(x+2)-(x+2)/(x+3)=1/(x+7)-1/(x+6)通分得[(x

2x/5-8/15=4/5×1/22x/5-8/15=2/52x/5=2/5+8/152x/5=14/15x=14/15÷2/5x=7/3

x+2分之1减去x²-4分之4x减去x-2分之2等于x²-4分之x-2减去x²-4分之4x减去x²-4分之2x+4等于x²-4分之x-2减4x减2x-

解分式方程输入很辛苦.经检验X=7/2是原方程的解.

4（x+y)-3(x-y)=14x+7y=14(x+y)/2+(x-y)/3=6两边同乘以6,得3(x+y)+2(x-y)=365x+y=36则x+7(36-5x)=14x=7,y=1

即1/(x+3)+2/(x-3)=12/(x+3)(x-3)两边乘(x+3)(x-3)x-3+2x+6=123x=9x=3经检验,x=3时分母x-3=0是增根舍去所以方程无解

(5/12-1/4）*x=1/31/6*x=1/3x=22/3-8x=x/22/3=8.5xx=1/51

(x-1)/3-(x+2)/6=(4-x)/2等式两边同乘6得：2(x-1)-(x+2)=3(4-x)去括号：2x-2-x-2=12-3x移项：4x=16x=4

(x^2-1)/2-(x-2)/3=x^23x^2-3-2(x-2)=6x^23x^2-3-2x+4=6x^23x^2+2x-1=0(3x-1)(x+1)=0所以x=1/3或x=-1

x减去8分之3x=12

再问：设x为1？再答：x=1x啊，这里的系数1省略了再问：ok谢谢了啊再答：~~

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

x/(x+2)-(x+2)/(x-2)=8/(x^2-4)x(x-2)-(x+2)^2=8x^2-2x-x^2-4x-4=8-6x=12x=-2

x+4=3x=7

x>2原式=(x-2)/(x-2)-(x-2)/(2-x)=1-(-1)=2x

X^2/X-2-X/X-2-1+X/2-XX^2-X/X-2-1+X/2-XX^2-X/X-2+1+X/X-2X^2-1/X-2这么简单的题咋能用此乃的口吻～?比我还悲伤

原式=(x^2+5x+6--1)/(x^2+5x+6)--(x^2+8x+15--1)/(x^2+8x+15)=1--1/(x^2+5x+6)--1+1/(x^2+8x+16)=1/(x^2+8x+1

1.x+1分之x-1减去x²-1分之4=x+1分之x+2(x-1)/(x+1)-4/(x²-1)=(x+2)/(x+1)同时乘以x²-1得(x-1)²-4=(x