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14.2=2.1-x
We move all terms to the left:
14.2-(2.1-x)=0
We add all the numbers together, and all the variables
-(-1x+2.1)+14.2=0
We get rid of parentheses
1x-2.1+14.2=0
We add all the numbers together, and all the variables
x+12.1=0
We move all terms containing x to the left, all other terms to the right
x=-12.1
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