35(x-2)+15(5x-6)=500,x=?
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35(x-2)+15(5x-6)=500,x=?
35(x-2)+15(5x-6)=500
解35X-70+75X-90=500
110X=500+160
X=6
解35X-70+75X-90=500
110X=500+160
X=6
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
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
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x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
2x+3x+4x+5x+x+6x+7x=100
35(X-2)+15(5X-6)=(22X-51)+21(3X-4)
35(x-2)-15(5x-6)=(22x-63)-21(3x-4)咋算?
5x+15/x^2+x-6=A/x-2+B/x-3
6/x+1=x-5/x^2+x
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已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
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