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7=0.75x+4.25
We move all terms to the left:
7-(0.75x+4.25)=0
We get rid of parentheses
-0.75x-4.25+7=0
We add all the numbers together, and all the variables
-0.75x+2.75=0
We move all terms containing x to the left, all other terms to the right
-0.75x=-2.75
x=-2.75/-0.75
x=3+0.5/0.75
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