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40.8=2+3.14x
We move all terms to the left:
40.8-(2+3.14x)=0
We add all the numbers together, and all the variables
-(3.14x+2)+40.8=0
We get rid of parentheses
-3.14x-2+40.8=0
We add all the numbers together, and all the variables
-3.14x+38.8=0
We move all terms containing x to the left, all other terms to the right
-3.14x=-38.8
x=-38.8/-3.14
x=12+1/2.80357142857
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