7-4(x-3)≤2(x-1)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(3x^2+9x+7)/(x+1)-(2x^2-4x+3)/(x-1)-(x^3+x+1)/(x^2-1)是不是错了?
(x-1)^3(x+1)(x-2)/(x+4)
(x+1)(x+2)(x+3)(x+4)+1
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
方程 3x(7-2x)+5x(2x-1)=4x(x-3)+56
化简(-2x^2)+3x+2)-3(7x^2-5x-1)-(4x^2-x+6)
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
(1)6+2(x-3)=X (2)8-2(x-7)=x-(x-4) (3)2x-(1.5x-1)=2(1.5x-1)
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)