x=1.5x-10

(x+2)(x^2+5x-10)-(x+2)^2(x-1),其中x=1.5(x+2)(x^2+5x-10)-(x+2)^2(x-1)＝(x+2)[(x^2+5x-10)-(x+2)(x-1)]＝(x+2)[(x^2+5x-10)-(x^2+

(x+2)(x^2+5x-10)-(x+2)^2(x-1),其中x=1.5,题目是这个吗?。。。。。。路过

x+x+(x*50%)=1.5X?x+x+0.5*x=1.5x2.5x=1.5xx=0

1.5(X-10)=4(X-20)求X原式=1.5x-15=4x-8080-15=4x-1.5x65=2.5xx=261.5x-15=4x-802.5x=65x=261.5X-15=4X-801.5X-4X=-15+802.5X=65X=2

1.5X=(1.5-0.25)(X+10)1.5x=1.25（x+10)1.5x=1.25x+12.50.25x=12.5x=50

解方程x+1.5x=10我觉得这个数字不吉利还是告诉你吧x+1.5x=102.5x=10x=44X=44

1200/x-10=1200/1.5x1200/x-10=1200/1.5x1200/x-1200/1.5x=101200/x-800/x=10400/x=10x=40

1200/x+10=1200/1.5x原方程可化为：1200/x+10=800/x移项得：1200/x-800/x=10即：400/x=10解得：x=40

x=8+1.5(x-10)x=8+1.5x-150.5x=7x=14

1.5X+10=7X-67x-1.5x=10+65.5x=16x=16÷5.5x=2又11分之10数学差，不懂哇1.5X+10=7X-61.5x-7x=-6-10-5.5x=-16x=32/11移项，得，1.5X-7X=-6-10-5.5X

已知x/(x*x-x+10)=1/3求（x*x）/x*x+x+1的值错了,是x/(x*x-x+1)=1/3,求（x*x）/(x*x+x+1)的值.sorry.解答过程能给出么?根据x/（x^2-x+1）=1/3可得:x^2+1=4x,则x^

36-(3x-10)=x-2x3.2x=14.2-1.5x求用方程解36-(3x-10)=x-2x3.2x=14.2-1.5x36-(3x-10)=x-2x36-3X+10=-X3X+（-X）=462X=46X=233.2x=14.2-1.

(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2=x^2+10x-24+x^2+15x+56-x^2+5x+50=x^2+30x+82=4+60+82=146其实,不化简,直接代入=14*0+9*10+7*8

(x-10)/(x-11)+(x-16)/(x-17)=(x-12)/(x-13)+(x-14)/(x-15)快,急用两边减去2(x-10)/(x-11)-1+(x-16)/(x-17)-1=(x-12)/(x-13)-1+(x-14)/(

1.(x+7)/(x+6)+(x+9)/(x+8)=(x+10)/(x+9)+(x+6)/(x+5)2.已知：-x+13/（x-5)(x+3)=A/(x-5)-B/(x+3).求A,B3.已知abc=1,求a/(ab+a+1)+b/(bc+

（X+X)+(X-X)+(X*X)+(X/X)=100（X+X)+(X-X)+(X*X)+(X/X)=1002X+0+X*X+1=1002X+X*X=99X(X+2)=99X=9因为(9+9)+(9-9)+(9×9)+(9÷9)=100，∴

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

1.5x=x-1.6＊xX=0

x+(x-1.4)+1.5x=33.x+(x-1.4)+1.5x=33.6原式：x+x-1.4+1.5x=33.63.5x=33.6+1.43.5x=35x=10

30/x=30/(x-1.5)-x30/x=30/(x-1.5)-x30(x-1.5)=30x-x^2(x-1.5)30x-45=30x-x^3+1.5x^2x^3-1.5x^2-45=02x^3-3x^2-90=0200