4.8x-x=0.
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4.8x-x=0.4.8x-x=0.4.8x-x=0.4.8x-x=0.763.8x=0.76x=0.23.8X=0.76X=0.76÷3.8X=0.2
4.8x-x=0.
4.8x-x=0.
4.8x-x=0.
4.8x-x=0.76
3.8x=0.76
x=0.2
3.8X=0.76
X=0.76÷3.8
X=0.2
4.8x-x=0.
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
4.8x+6.2x-x=4.8
（X+X)+(X-X)+(X*X)+(X/X)=100
3.6x*(2.1-x)=4.8x
（x-3.6)/4=(x+4.8)/8x 求x
x--0.6x=4.8
16^X - 12^X -9^X = 0.求X.
(98-X)+(100-X)+X=X/0.
x-0.25x=0.
x+4.5x=0.
X-0.25x=0.
X-0.25x=0.
2.2x-x=0.
120X-X=0.
x-0.4x=0.
1.2x-x=0.
X-0.48X=0.