3(2x-3)+6=15-2(x+6)怎么算
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
(X-3)/(X^2-4)*(X^2-4X+4)/(x^2-x-6)-1/(x+2)怎么算?
(2x+1)²-(x+3)(3-x)=6x怎么简便算?
7x(x-6)+3x=4x(2x+5)怎么解这个方程
(x+52-6)*2/3=x+6怎么算
2x+1.5x=17.5 8x-3x=105 3x+x+6=26 怎么解
4+6X(3x-2)=16x 怎么解方程?注备:X=乘 x=x
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
2(x-2)-3(3x+2)=x+6怎么做 X=几?
(x+5)²-(x-2)(x-3) =x²+10x+25-(x²-5x+6) *5x怎么来
(-x+2x²+5)+(4x²-3-6x)怎么算?
方程:2X+4-x=9怎么解?还有X+6=4+3X.