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-4.3=2.1+w/4
We move all terms to the left:
-4.3-(2.1+w/4)=0
We add all the numbers together, and all the variables
-(w/4+2.1)-4.3=0
We get rid of parentheses
-w/4-2.1-4.3=0
We multiply all the terms by the denominator
-w-(2.1)*4-(4.3)*4=0
We add all the numbers together, and all the variables
-1w-25.6=0
We move all terms containing w to the left, all other terms to the right
-w=25.6
w=25.6/-1
w=-25+0.6/1
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