2x加1除以3减6分之x减1等于2-搜答案-搜搜考试网

1楼最后算错了引用一下：1/(x+1)-1/(x²-1)÷(x+1)/(x²-2x+1)=1/(x+1)-1/(x+1)(x-1)×(x-1)(x-1)/(x+1)=1/(x+1)

2X除以7加4分之1X的和除以5X除以7加3X除以4=(2X/7+X/4)/(5X/7+3X/4)=(8X+7X)/(20X+21X)=15/41

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

1/x+1/y=2(x+y)/xy=2x+y=2xy(2x-xy+2y)/(3x+5xy+3y)=[2(x+y)-xy]/[3(x+y)+5xy]=(4xy-xy)/(6xy+5xy)=3xy/11x

(x+1)(x+2)/(x²+4x+4)×(3x+6)/(2x²-8)×6÷1/(x²-4)=(x+1)(x+2)/(x+2)²×2(x+2)/2(x+2)(x

[x/(x+3)+6x/(x+3)(x-3)]×(x+3)(x-3)=x(x-3)+6x=x-3x+6x=x+3x

(x+1)分之1-(x²-6x+9)分之(3-x)÷(x-3)分之(x²+x)=(x+1)分之1-(x-3)²分之[-(x-3)]÷(x-3)分之[x(x+1)]=(x+

x=-1/3

看你的题目都看了很少时间(x-4)/(x^2-1)÷(x^2-3x-4)/(x^2+2x+1)+1/(x-1)=(x-4)/(x^2-1)[(x^2+2x+1)/(x^2-3x-4)]+1/(x-1)

原式=(x+1)/x÷(2x²-1-x²)/2x=(x+1)/x÷(x²-1)/2x=(x+1)/x÷(x+1)(x-1)/2x=(x+1)/x*2x/(x+1)(x-1

①3除以x分之2=3*x/2=3x/2②x分之3除以x^2分之6=3/x*x^2/6=x/2③x分之2x+1除以5分之6+12x=(2x+1)/x*5/(6+12x)=5/6x④x^2+3x+2分之x

[(x+2)/(x-2)-(x-4)/(x^2-4x+4)]÷(x^2-1)/(x^2+x)=[(x^2-4)/(x-2)^2-(x-4)/(x-2)^2]*x(x+1)/(x-1)(x+1)=(x^

是(x-1)/(x-2+1)=3吗x-1=3x-3无解

(x²+x-2)分之(1+x)÷[x-2+(x+2)分之3]=(x²+x-2)分之(1+x)÷[(x+2)分之(x²-1)]=[(x+2)(x-1)]分之(1+x)×(x

√x－1／√x＝3两边平方得出x＋1／x＝11(1+xˆ2)∕x=x＋1／x＝11

1-2xx+15x-1-----------=------236等式两边同乘63(1-2x)-2(x+1)=5x-13-6x-2x-2=5x-112x=2x=1/6

(2x+1)/3-(x+1)/6=22(2x+1)-(x+1)=124x+2-x-1=123x=12-1x=11/3

你可以手写照下来吗?看不懂再答：再问：再问：你能放大点吗再问：人呢再答：哦，我再写一遍再问：嗯再答：再问：图片好小再问：不过基本会了

原试两边都乘以2x+1-2=8x-47x=1+4-2x=3÷7x=3/7