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(x*5.5)+((x+2)*3.5=25
We move all terms to the left:
(x*5.5)+((x+2)*3.5-(25)=0
We add all the numbers together, and all the variables
(+x*5.5)+((x+2)*3.5-25=0
We get rid of parentheses
x*5.5+((x+2)*3.5-25=0
Wy multiply elements
5.5x+((x+2)*3.5-25=0
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