x+4.5x=0.
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/18 12:19:56
x+4.5x=0.x+4.5x=0.x+4.5x=0.5.5X=0.55X=0.55/5.5X=0.1x+4.5x=0.555.5x=0.55x=0.1x+4.5x=0.55x(1+4.5)=0.55
x+4.5x=0.
x+4.5x=0.
x+4.5x=0.
5.5X=0.55
X=0.55/5.5
X=0.1
x+4.5x=0.55
5.5x=0.55
x=0.1
x+4.5x=0.55
x(1+4.5)=0.55
5.5x=0.55
x=0.1
乘法分配律
x+4.5x=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
（X+X)+(X-X)+(X*X)+(X/X)=100
9x+7x-x=4.5
20%x+20%x×30%x-20%x=4.5
6.5x-4.5x=93.6-6.5x-3.5x
16^X - 12^X -9^X = 0.求X.
(98-X)+(100-X)+X=X/0.
4.5x+x=12
4.5X-X=3.5
x+24=4.5X
4.5x-x=10.5
4.5 x + x=22
x-0.25x=0.
X-0.25x=0.
4.8x-x=0.
X-0.25x=0.
2.2x-x=0.