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42.40=1.06x
We move all terms to the left:
42.40-(1.06x)=0
We add all the numbers together, and all the variables
-(+1.06x)+42.40=0
We add all the numbers together, and all the variables
-(+1.06x)+42.4=0
We get rid of parentheses
-1.06x+42.4=0
We move all terms containing x to the left, all other terms to the right
-1.06x=-42.4
x=-42.4/-1.06
x=40+-7.105427357601E-15/1.06
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