2(X+X-10)=100
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2(X+X-10)=1002(X+X-10)=1002(X+X-10)=1002(2X-10)=1004X-20=100X=30
2(X+X-10)=100
2(X+X-10)=100
2(X+X-10)=100
2(2X-10)=100 4X-20=100 X=30
100(X - 2) + 10X + 2X = 100*2X + 10X + X - 2 - 495
100×2x+10x+3x+216=100×3x+10×2x+x
（X+X)+(X-X)+(X*X)+(X/X)=100
100(x+4)+10x+(x+2)=21[10x+(x+2)]
一道一元一次方程,[100x+10(x-2)+24-x-(x-2)]-(10x+x)=100[24-x-(x-2)]+10(x-2)+x[100x+10(x-2)+24-x-(x-2)]-(10x+x)=100[24-x-(x-2)]+10(x-2)+x
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=100
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
100/x+1/2=150/(x+10) x=?
10x+x^2-100=0,求x
8x+2x+10x=100
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1
X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4)
X+X-10+X+8=100
求x:x(10^x)=100
x^2+10x( )=(x+ )^2
x^2-10x=2-x
2x×x=10,求x