6(1.2-x)=3x
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6(1.2-x)=3x
6(1.2-x)=3x
6(1.2-x)=3x
X=4/5
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
3X-18=13.2 1.5X-X=6 4X+1.2X=26
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
2x+3x+4x+5x+x+6x+7x=100
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
已知3x*x-x=1,求6x*x*x+7x*x-5x+2000
X(x平方-6x-9)-x(x平方-8x-15)+2x(3-x)其中x=-六分之一
3x+5x-6x=?
6(1.2-x)=3x
0.3x+7x-0.25x=21.15 x+7=2x+3 1.2x+1=0.01x+三分之五 4x-26=3x+4 6x+2=5x+110.3x+7x-0.25x=21.15x+7=2x+31.2x+1=0.01x+三分之五4x-26=3x+46x+2=5x+114(x+1)=x+10
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x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)
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[3/x]-[4/x-1]=6/x-x²
3.268=3X()+2X()+6X()+8X()
[3/x]-[4/x-1]=6/x-x²
x平方+5x+6=(x+3)(x+几)
(x+2)(x-3)(x-6)(x-1)=0