10x+6=12x-6
4x-2=3x+1 -x+3=10 x-7=11-x x=四分之一x+6
6x-2x+3x-3x-x=1.2×3
(2x^-5x+2/6x^+13x+6)*(6x^-5x-6/6x^-17x+10)*(12x^+8x-15/2x^-x
解下列方程(2)4x²+12x+9=81 (4)2x²+3x=3 (6)x(2x-5)=4x-10
1.4(x+5)(x+6)(x+10)(x+12)-3x·x
数学题(x-4)/(x-3)+(x-6)/(x-5)=(x-8)/(x-7)+(x-10)/(x-9)解方程,
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
4x²-4x+1=x²+6x+9
解方程:4x-2x+6=x(2x-4)+8
12.5+6x=13.1 x-二十分之三x=18.7 2x+1.5x=17.5 x-二分之一x=4
若代数式2X²-3X+7=12,则代数式-4X²+6X-10=()
已知x+5x-990=0,求x+6x-985x+1026