1.x/0.3+8/3-1.4-3x/0.2=14
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
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
13.2X+9X=33.3 8X-3X=105 5.4X+X=12.8 X-0.3
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
3x-2(4x+8)=2.4 6.5-(x+1.3)=2.2 0.2(x-4)=0.3(x-1
5x+2=-8 x=30 3x=5x-14 x
(x^3)^()*x^2=x^14
2.4x-1.4x-3x=5.2-8
1..(3x+2)(x+3)=x+14
x/0.3+8/3-1.4-3x/0.2=14 解方程
(1)3x(x+0.2)=4x(x-1.1)
解方程3x-10/x-3 +4x-5/x-1=6x-17/2x-5 +8x-14/2x-3