4+1.2(x-3)+2(x-5)怎么解

7x(x-6)+3x=4x(2x+5)怎么解这个方程 X-2分之X=X-5分之X－4怎么解?还有X减3分之X等于X减1分之X＋1 (x^2)^4+2x^3·x^5-(3x^4)^2怎么解 2x平方-4-2x平方+3x分之5=-3x怎么解 5x-4/x-2=4x 10/3x-6-1 怎么解 4x(x-5.07)+x=8.63 18-4x=2x+3 (2x-4)*3=(x+5)*4 用方程怎么解 0 2/5x +56=3/4x 怎么解 X(X-1)+2X(X+1)-3X(2X-5)这道题目怎么解? 4+6X（3x-2）=16x 怎么解方程?注备：X=乘 x=x 1.2-5x+x*x2.2x*x-5x+13.x*x-3/2*x-24.-x*x-4x+3 解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7) 解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)