1/3(6x-4)-x=-3(-x+6)求x等于多少
(x-1)(x-2)(x-3)(x-4)=(x+5)(x+6)(x+7)求X等于几?
3x+1=5x+2=7x+4=13x+6 求x等于多少?
(2x-6)/(x²-4x)/(X+3)*( x²+x-6)/(3-x)等于多少?
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
4{x-(2/3x+6)}=2/3x+6 求x等于多少?
(x-1)(x-2)(x-3)(x-4)=0,求x等于多少,
5x(2x-6)=3x+5 求x等于多少
5x-3(2x+1)=6x-4(5-3x)求x
x+2x-3x-4x+5x+6x-7x.-196x+197x+198x-199x-200x 等于多少
(-x)1(-x)2(-x)3(-x^4)等于多少
(x+1)(x+2)(x+3)(x+4)等于多少
2x²+3x+7=12, 4X²+6X-1=?说明X等于多少