(1+0.8%)x+(1+1.1%)×(42-x)=(1+1%)×42
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(1+0.8%)x+(1+1.1%)×(42-x)=(1+1%)×42(1+0.8%)x+(1+1.1%)×(42-x)=(1+1%)×42(1+0.8%)x+(1+1.1%)×(42-x)=(1+1
(1+0.8%)x+(1+1.1%)×(42-x)=(1+1%)×42
(1+0.8%)x+(1+1.1%)×(42-x)=(1+1%)×42
(1+0.8%)x+(1+1.1%)×(42-x)=(1+1%)×42
(1+0.8%)x+(1+1.1%)×(42-x)=(1+1%)×42
1.008x+1.011*42-1.011x=1.01*42
-0.003x=-0.001*42
x=14
(1+0.8%)x+(1+1.1%)×42-（1+1.1%）x=(1+1%)×42
(1+0.8%)x-(1+1.1%)x=(1+1%)×42-(1+1.1%)×42
(-0.3%)x=(-0.1%)×42
x=14
x＋0.8%x＋1.011×42－1.011x＝1.01×42
1.011x－1.008x＝0.042
x＝14
1.1/x|x/(x+1)|
因式分解：1.1+a+b+c+ab+bc+ca+abc 2.x*x*x*x*x*x*x*x+x*x*x*x+1
x/x+(1-x)/x-1/x
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(x+1)(x-1)(x-x+1)(x+x+1)
分解因式----（X*X-X)(X*X-X-2)+1
X(X-1)=X
x/x-1[1+(x-1/x)]
x-1/x÷(x-1/x)
】x(x+1)+x^2(x-1)
1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做
x*(1+40/100)*0.8-x=15 X=?
1.1/x+1/x+1=5/2x+2 解方程 2.24、x-17-x/x-1=1
x-4/1x=8/3 x-0.8x=22 3/2x+2/1x=42x-4/1x=8/3 x-0.8x=22 3/2x+2/1x=42
0.5x+3=0.8x+1
（X-1)/0.2 -X/0.8 =10