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4.2=-2x+29.8
We move all terms to the left:
4.2-(-2x+29.8)=0
We get rid of parentheses
2x-29.8+4.2=0
We add all the numbers together, and all the variables
2x-25.6=0
We move all terms containing x to the left, all other terms to the right
2x=25.6
x=25.6/2
x=12+1/1.25
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