(x-3)/2=x/7+6怎么算
7x(x-6)+3x=4x(2x+5)怎么解这个方程
(2x+1)²-(x+3)(3-x)=6x怎么简便算?
2x+3/x+1=6x+7/3x+4 这道分式方程怎么算
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
X-40%X+1200=2/3X怎么算
(X-3)/(X^2-4)*(X^2-4X+4)/(x^2-x-6)-1/(x+2)怎么算?
7x-3(2/3x+1/5x)-(x+2/5x)+2x,=5x怎么求出
(2x^4-3x^3+6x^2+7x-4b)÷(x-2)怎么算?
2(x-1)(x+5)-3(x-2)-4x=2x的平方+7方程题怎么算?
2x+3x+4x+5x+x+6x+7x=100
7x+2=2(x+6)怎么算
3x-4=7x-6下面怎么算?