20.56-2x=3.14*x 20.56-2x=3.14*x
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20.56-2x=3.14*x20.56-2x=3.14*x20.56-2x=3.14*x20.56-2x=3.14*x20.56-2x=3.14*x20.56-2x=3.14*x20.56-2x=3
20.56-2x=3.14*x 20.56-2x=3.14*x
20.56-2x=3.14*x
20.56-2x=3.14*x
20.56-2x=3.14*x 20.56-2x=3.14*x
20.56-2x=3.14*x
3.14x+2x=20.56
5.14x=20.56
x=20.56÷5.14
x=4
3.14x=20.56-2x
20.56-2x=3.14*x 20.56-2x=3.14*x
2X+3.14X=?
f(x)=x^2+x (x
3.14x除以2+x=20.56该怎么解
x^2=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平方-x+2=2x/x+1
f(x)=x|x|+2x (x
(X+1)X(X+2)X(X+3)=504
128.5-2x=3.14x+2x
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
3.14*（0.5x)(0.5x)*2x=50
3.14*2x=2（x+6.
20.7-2x=3.14x
2*3.14x*x=6.28
x×3.14×2+x=5210