4x+6(x-12)=228
4x+6(x-12)=228
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
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
解方程(6x+12)/(x^2+4x+4) + (x^2-4x+4)/(x^2-4) =(x^2-4)/(x^2-4x+
5x+9x=6x*2+12 x+9-x/3=4
x=x/6+x/12+x/7+5+x/2+4=?
x^3×x^5×x+(x^3)^12+4(x^6)^2=?
1/6x+1/12x+1/7x+5+1/2x+4=x
2x+3x+4x+5x+x+6x+7x=100
x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=?
5x+12=6x-4