3x+100-x/3=100
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3x+100-x/3=1003x+100-x/3=1003x+100-x/3=1003x+100-x/3=1003x-x/3=100-1003x-x/3=03x=x/39x=xx=08x/3=100-
3x+100-x/3=100
3x+100-x/3=100
3x+100-x/3=100
3x+100-x/3=100
3x-x/3=100-100
3x-x/3=0
3x=x/3
9x=x
x=0
8x/3=100-100
8x/3=0
x=0
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=100
3x=x+100 x=?
x+2x+3x+.+100x
（X+X)+(X-X)+(X*X)+(X/X)=100
X+100=3X
3x=100+x
3x=100+x
3x=x+100
3x=x+100
解方程：2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
1X+2X+3X…+98X+99X+100X=50500X X等于多少?
1/X(X+1)+1/(X+1)(X+2)+1/(X+2)(X+3).+1/(X+99)(X+100)=
1x+2x+3x+4x+5x+6x+7x…+99x=100
100×2x+10x+3x+216=100×3x+10×2x+x
解方程:x-2x+3x-4x+...+99x-100x=25
解方程：x-2x+3x-4x+.+99x-100x=25
x-2x+3x-4x+...+99x-100x=25