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1=0.4-0.5x-2
We move all terms to the left:
1-(0.4-0.5x-2)=0
We add all the numbers together, and all the variables
-(-0.5x-1.6)+1=0
We get rid of parentheses
0.5x+1.6+1=0
We add all the numbers together, and all the variables
0.5x+2.6=0
We move all terms containing x to the left, all other terms to the right
0.5x=-2.6
x=-2.6/0.5
x=-5+0.1/0.5
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