3x÷2=(x+7)÷3
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3x÷2=(x+7)÷33x÷2=(x+7)÷33x÷2=(x+7)÷3
3x÷2=(x+7)÷3
3x÷2=(x+7)÷3
3x÷2=(x+7)÷3
化简 [3x/(x+2)-x/(x=2)]÷x/(x^2-4)化简 [3x/(x+2)-x/(x-2)]÷x/(x^2-4
x-3/7x=x÷2+20
X^2-3X-2=0,求( x - 2x-1/x )÷(x-1)/(x^2-2x)
21分之10x÷3分之2=7分之3x-3分之1x-2分之1x=190x-53x=7408.5x-6.9x=43.3x-200=0.2x+1101.02+0.4x+2.6x=3.428.9x-67=4.5x+656x-58=3x+1410x-20=5x+806x+5=10x-3420-1.4x=9.8x-288.2x+5.4x=272
先化简 再求值[(2x)²(x+1)²-3x²(x²+8/3x-1)-7x²]÷x³ 其中x=-2
x-2/(x^2-9)(1+(2x-7/x^2-4x+4)÷(x+1)/(x+3)其中x=2010
x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4)2.2/3+x/(3x-1)=1/9x-3
2x^2-4x/x+2`x^2+2x/x^2-4x+4÷x/3x-6,其中x=根号3/2
2x^2-4x/x+2`x^2+2x/x^2-4x+4÷x/3x-6,其中x=根号3/2
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x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
当x=9/2时,求(x^2+7x+10)/(x^2+6x+5)×(x^3+1)/(x^2+4x+4)÷(x^2-x+1)/(x+2)
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
化简求值:(3x/x+2-x/x-2)÷2x/x^2-4,x=-3
先化简再求值[3x/(x+2)-x/(x-2)]÷2x/(x^2-4)x=2010
x=根号3时,代数式(x/x-1-x/x+1)÷2x/1-x的值是?
先化简,再计算2x^-18/4-4x+x^ ÷ 3-x/x^+x-6,其中x=4
[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简