4*1.25x+4x=360
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![4*1.25x+4x=360](/uploads/image/z/959840-8-0.jpg?t=4%2A1.25x%2B4x%3D360)
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4*1.25x+4x=360
4*1.25x+4x=360
4*1.25x+4x=360
是不是求X
5x+4x=360
9x=360
x=40
4x+x×1.25x=360(解方程)
4*1.25x+4x=360
(x+1.25x)乘4=360,
4(x+1.25x)=360
一个“整式的乘法”的问题请先阅读下列解题过程,再仿做下面的问题.已知X*X + X - 1=0,求X*X*X + 2*X*X + 3的值.解X*X*X + 2X*X +3=X*X*X +X*X -X +X*X +X +3=X{X*X +X -1} +X*X +X -1 +4=0+0+4=4+ x + X*X + X*X*X=0.+ X*X + X*X*X
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
3/(7X)+4/7(1.25X)=1/X
210-x=360-4x,求x
x-2x+3x-4x+5x.+99x-100x=25求解
先化简,再求值:(x-2/x-x+2/x)/x-2/4x,x=2011
2x+3x+4x+5x+x+6x+7x=100
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(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
提取公因式:已知x*x-5x+1=0 求x*x*x-4x*x-4x-1
X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4)
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=?