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-16.5x+4.21+7.1x=-2.03+4.2x
We move all terms to the left:
-16.5x+4.21+7.1x-(-2.03+4.2x)=0
We add all the numbers together, and all the variables
-16.5x+7.1x-(4.2x-2.03)+4.21=0
We add all the numbers together, and all the variables
-9.4x-(4.2x-2.03)+4.21=0
We get rid of parentheses
-9.4x-4.2x+2.03+4.21=0
We add all the numbers together, and all the variables
-13.6x+6.24=0
We move all terms containing x to the left, all other terms to the right
-13.6x=-6.24
x=-6.24/-13.6
x=5.03225806452/10.9677419355
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