2X(x+0.2)=0.6
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2X(x+0.2)=0.62X(x+0.2)=0.62X(x+0.2)=0.6x+0.2等于0.6除以2等于0.3x等于0.3减0.2等于0.1
2X(x+0.2)=0.6
2X(x+0.2)=0.6
2X(x+0.2)=0.6
x+0.2等于0.6除以2等于0.3
x等于0.3减0.2
等于0.1
一元一次方程 2x+0.2=1.2x-0.6-2.2x
x/0.5-0.4x-0.6/0.2=2(-x+3)
2X(x+0.2)=0.6
(x-1)+(x+2)+0.2x+2x=46
f(x)=x^2+x (x
5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,解方程,5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,0.8x-0.2+1.2x=1.8,2.4x+0.6+1.6=8
x^2=x
化简(2x-5)(3x+2)-6(x+1)(x-2),其中x=0.2
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,
解方程.[X-0.3X-0.2(X-0.3X)-2]-0.3X=28
1.当X=12时,X+19()30,60-X()32 2.X=0.2时,0.6X()0.12,X÷2()0.2
x/x平方-x+2=2x/x+1
f(x)=x|x|+2x (x
(X+1)X(X+2)X(X+3)=504
(0.2x+0.5)/0.04+(x-3)/0.6=12x
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+1/0.2-2X=0.1x+0.2/0.03: