3x+180+380=5(x-40)
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用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
3x+180+380=5(x-40)
1.75%X=15.52.180*40%X=8/53.4X+5%X=3/4
① (x-5)/8+40=(x-5)/6② x+(3x+1)+(x/2 -1)=180
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(16x-13)/(4x-3)-(20x-24)/(4x-5)=(32x-30)/(8x-7)-(40x-43)/(8x-9)求x
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解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=100
x(x-2)-2x(x+1)-3x(x-5) 其中x=负½
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
x-40-3/5x=100(求x,
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
3x+5x=?x等于
3x+5x-6x=?
3x+5x=8x.