作业帮0.4x-0.6=0.2x-1.8
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0.4x-0.6=0.2x-1.8
0.4x-0.6=0.2x-1.8
0.4x-0.6=0.2x-1.8
0.2X=-1.2
X=-6
答：
0.4x-0.6=0.2x-1.8
移项：
0.4x-0.2x=-1.8+0.6
0.2x=-1.2
两边同时除以0.2：
x=-1.2/0.2
x=-6
解 4x-6=2x-18
4x-2x=6-18
2x=-12
x=-6
0.4x-0.2x=-1.8+0.6
0.2x=-1.2
x=-0.6
0.4x--0.6=0.2x--1.8
0.4x--0.2x=--1.8+0.6
0.2x=--1.2
x=--6.
0.4x-0.6=0.2x-1.8
0.4x-0.6=0.2x-1.8
1.8-0.4x=0.2x-0.6
x/0.5-0.4x-0.6/0.2=2(-x+3)
0.2x+0.4x=12 x=?20x+x=420 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
(0.1x+0.4)/0.2-(0.2x-0.6)/0.3=1
50+0.4x=0.50+0.4x=0.6x
(0.4x-2.1)/0.5=(0.1+0.2x)/0.03-0.6
(0.4x-2.1)/0.5=(0.1+0.2x)/0.03-0.6
0.4x-2.1/0.5-0.5-0.2x/0.03=0.6
0.6x+2.8x=12.8+1.8x
0.6X=0.4X+50,x=多少?
(x-0.6)/0.4+x=(0.1x+1)/0.3
(x-0.6)/0.4-x=(0.1x+1)/0.3
一元一次方程 2x+0.2=1.2x-0.6-2.2x
(0.2x+0.5)/0.04+(x-3)/0.6=12x
6x+0.4x-0.2x=4.5