6.4x-1.2=4x+2.4
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
3X-18=13.2 1.5X-X=6 4X+1.2X=26
解下列方程: 1.2(x+3)=5x 2.4x+3(2x-3)=(x+4) 3.6(1/2x-4
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
60+1.2x=2.4x+1.2x怎样解
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
7.8x-2.4x=1.08 4(x+0.5x)=28 3.6x+4.5x=56.7
x-x/5=2.4 (求未知数x) 12÷5%x=8 4x+x=12.5
13x-5x(2x-3.3)=24 16-5x(x+1.2)=2x-4 方程解
解方程;x/0.5-10+2=0 4(0.9-x)=3.2x 6.4-2(x+1.2)=0.4
6×1.2-x=2.4 1.4x-0.3x+4=92
1.2(x-2)-3(4x-1)=9(1-x) 2.11x+64-2x=100-9x 3.15-(8-5x)=7x+(4