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2u+4=2(u+2)
We move all terms to the left:
2u+4-(2(u+2))=0
We calculate terms in parentheses: -(2(u+2)), so:We get rid of parentheses
2(u+2)
We multiply parentheses
2u+4
Back to the equation:
-(2u+4)
2u-2u-4+4=0
We add all the numbers together, and all the variables
=0
u=0/1
u=0
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