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15.52=8.40+2x
We move all terms to the left:
15.52-(8.40+2x)=0
We add all the numbers together, and all the variables
-(2x+8.4)+15.52=0
We get rid of parentheses
-2x-8.4+15.52=0
We add all the numbers together, and all the variables
-2x+7.12=0
We move all terms containing x to the left, all other terms to the right
-2x=-7.12
x=-7.12/-2
x=3+1/1.7857142857143
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