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0.8=0.5+0.55-x
We move all terms to the left:
0.8-(0.5+0.55-x)=0
We add all the numbers together, and all the variables
-(-1x+1.05)+0.8=0
We get rid of parentheses
1x-1.05+0.8=0
We add all the numbers together, and all the variables
x-0.25=0
We move all terms containing x to the left, all other terms to the right
x=0.25
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