2.2x(X-0.6)=1.1
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2.2x(X-0.6)=1.12.2x(X-0.6)=1.12.2x(X-0.6)=1.1X-0.6=0.5X=1.1
2.2x(X-0.6)=1.1
2.2x(X-0.6)=1.1
2.2x(X-0.6)=1.1
X-0.6=0.5X=1.1
2.2x(X-0.6)=1.1
一元一次方程 2x+0.2=1.2x-0.6-2.2x
解方程 1.2x+8.8x=78 2x+9x-1.1=0 6.9x-3.8x=46.5 7.8x+2.2x=43.6
（X+X)+(X-X)+(X*X)+(X/X)=100
2.2x-x=0.
2.2X=75+X,
0.6x(200-X)-4X=106.2 X=?
(8.9-x)/x=0.6
x--0.6x=4.8
x-0.6x=14
0.6x+140 =X
(10000-x)/x=0.6
0.6X+140 =X
x-0.6x=5.6
x-0.6x=2.4
x-0.9=x+0.6
x-0.6x=0.7
x*x*x*x*x=80000?