0.25x=0.125(120-x)+15
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0.25x=0.125(120-x)+150.25x=0.125(120-x)+150.25x=0.125(120-x)+150.25x=0.125(120-x)+150.25x=15-0.125x+
0.25x=0.125(120-x)+15
0.25x=0.125(120-x)+15
0.25x=0.125(120-x)+15
0.25x=0.125(120-x)+15
0.25x=15-0.125x+15
(0.25+0.125)x=30
0.375x=30
x=30\0.375
x=80
0.25x=0.125(120-x)+15
8*0.25x=8*0.125(120-x)+15*8
2x=120-x+120
x=240/3
=80
0.25x=0.125(120-x)+15
0.25x=15-0.125x+15
0.375x=30
x=30\0.375
x=80
x=80
0.25x=15-0.125x+15
0.25x+0.125x=30
0.375x=30
x=30/0.375
x=80
x=1+0.5x+0.25x+0.125x+0.0625x求x的值
0.25x=0.125(120-x)+15
x(x+1)(x-1)=120
x-0.25x+1=10.4x+0.25x-1
证明(x+1)(X+3)(x+5)(x+7)+15=(X+8x)+22(x+8x)+120
(0.5x+1)+(0.25x+0.5)+(0.125x+2.25)=x怎么解,
X(X-1)=X
x>=1,x
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x*x*x*x+2008x*x+2007x+2008(提示：x*x*x-1=（x-1）*（x*x+x+1））
0.25x=0.125(120-x)+15数学应用题
x/x平方-x+2=2x/x+1
(X+1)X(X+2)X(X+3)=504
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-1/0.25-x/12.5=1.2 x等于多少?
0.3(x+1)+0.25(100-x)=2/5x
x - (x - 120)*60%-120=1/4x