(1)4-0.6(x-3)=x-3/5(x+7) (2)8-2(x-7)=x-(x-4)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
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 (解方程)
5x/(x+3)(x+2)+(2x-5)/(x-4)(x+3)=(7x-70)/(x+2)(x+4)
方程 3x(7-2x)+5x(2x-1)=4x(x-3)+56
(1)6+2(x-3)=X (2)8-2(x-7)=x-(x-4) (3)2x-(1.5x-1)=2(1.5x-1)
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
x(x^2-1)+2x^2 *(x+1)-3x*(2x-5)=x(3x^2-4x)-28
有一道题目"x=100时,求多项式(8-7x-6x平方+x立方)+(x立方+5x平方+4x-1)-(-x平方-3x+2x
5x-3(2x+1)=6x-4(5-3x)求x