-4-0.2x+11=-0.8x+10
combine like terms -4+11=7
-0.2x+7=-0.8x+10
subtract 10-7=3
-0.2x=-0.8x+3
change -0.8x to positive 0.8x and add it. -0.2x+0.8x=0.6x
0.6x=3
divide. 3/0.6x=5
x=5
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