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x+x-3.05=9.20
We move all terms to the left:
x+x-3.05-(9.20)=0
We add all the numbers together, and all the variables
x+x-3.05-(9.2)=0
We add all the numbers together, and all the variables
2x-12.25=0
We move all terms containing x to the left, all other terms to the right
2x=12.25
x=12.25/2
x=6+0.25/2
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