解方程-0.4x+0.1=-0.5x+0.2
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解方程-0.4x+0.1=-0.5x+0.2
解方程-0.4x+0.1=-0.5x+0.2
解方程-0.4x+0.1=-0.5x+0.2
-0.4x+0.1=-0.5x+0.2
0.5x-0.4x=0.2-0.1
0.1x=0.1
x=1
解方程-0.4x+0.1=-0.5x+0.2
解方程-0.4x+0.1=-0.5x+0.2
解方程-0.4x+0.1=-0.5x+0.2
-0.4x+0.1=-0.5x+0.2
0.5x-0.4x=0.2-0.1
0.1x=0.1
x=1