3分之2x加8=6分之7x

1)3分之1：6分之1=8：x(3分之1)x=6分之8x=42)0.5x加1又8分之1乘6=70.5x加4分之27=70.5x=4分之1x=2分之1.

x/3+1=2x/7-32x/3+1-5x/6-1=13x/4-1=5x/6+13x/0.2-1=2x/0.5-x/0.1+4.5+37x+21=6x-634x+6-5x-6=69x-12=10x+1

原方程为:x+x\2+1-x+x\4+3=x+x\6+5-x+x\8+7整理得：3x\4+4=7x\24+12两边同时乘以24,得18x+96=3x+288,x=12.8

X+1分之X+2+X+7分之X+8=X+5分之X+6+X+3分之X+4等式两边各2个x常数和都为10所以都约去得1／x＋7／x＝5／x＋3／x为恒等式所以x为不等于零的任意实数再问：������ڶ�Щ

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

x：7分之4=3分之1x=1/3×4/7x=4/218分之15：x=2分之3x=15/8÷3/2x=5/46分之1÷10分之9=5分之2：x5/27=2/5：xx=2/5÷5/27x=54/25

3分之2x=6分之5x=6分之5÷3分之2x=1又4分之110分之7x=25分之14x=25分之14÷10分之7x=5分之42x加2分之1=12x=1-2分之1=2分之1x=2分之1÷2x=4分之1

3(2x-1)=6-(x+2)6x-3=6-x-27x=7x=1(2x-1)/3=(3x+5)/22(2x-1)=3(3x+5)4x-2=9x+15-5x=17x=-17/5

161/161/10

1,4/(y²-1)+(y-3)/(1-y)+1=04-(y-3)(y+1)+(y²-1)=0y=-32,1/(x-3)-1/(x-4)=1/(x-6)-1/(x-7)1/(x-3

设x-2为A,将A代入式子得,A分之x+3A分之4x=2,然后根据正常的解方程步骤算出结果

 再答：求采纳

等号前后同时分别计算减法得：(x+1)(x+3)分之2=(x+5)(x+7)分之2所以：(x+1)(x+3)=(x+5)(x+7)x^2+4x+3=x^2+12x+35x=-4

2x+x/2=15两边同时乘以2,得4x+x=30所以5x=30得x=67x/11=6-x/33两边同时乘以33,得21x=198-x即22x=198所以x=9

每个分式减去1(x-4-x+5)/(x-5)+(x-8-x+9)/(x-9)=(x-7-x+8)/(x-8)+(x-5-x+6)/(x-6)1/(x-5)+1/(x-9)=1/(x-8)+1/(x-6

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

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

2x/3+5x/6=1/2;9x/6=1/2;x=1/3;再问：看不明白再答：2x/3+5x/6=1/2;4x/6+5x/6=1/2;9x/6=1/2;x=1/3;再问：4x怎样得来的，前面没有什么x

（x+8)/(x+7)+(x+9)/(x+8)=(x+7)/(x+6)+(x+10)/(x+9)（x+8)/(x+7)-(x+7)/(x+6)=(x+10)/(x+9)-(x+9)/(x+8)1+1/

(x+7)/(x+6)+(x+9)/(x+8)=(x+10)/(x+9)+(x+6)/(x+5)1+1/(x+6)+1+1/(x+8)=1+1/(1+9)+1+1/(x+5)1/(x+6)+1/(x+