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7=x+2.25
We move all terms to the left:
7-(x+2.25)=0
We get rid of parentheses
-x-2.25+7=0
We add all the numbers together, and all the variables
-1x+4.75=0
We move all terms containing x to the left, all other terms to the right
-x=-4.75
x=-4.75/-1
x=4+0.75/1
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