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4=-2/3+u
We move all terms to the left:
4-(-2/3+u)=0
Domain of the equation: 3+u)!=0We add all the numbers together, and all the variables
We move all terms containing u to the left, all other terms to the right
u)!=-3
u!=-3/1
u!=-3
u∈R
-(+u-2/3)+4=0
We get rid of parentheses
-u+4+2/3=0
We multiply all the terms by the denominator
-u*3+2+4*3=0
We add all the numbers together, and all the variables
-u*3+14=0
Wy multiply elements
-3u+14=0
We move all terms containing u to the left, all other terms to the right
-3u=-14
u=-14/-3
u=4+2/3
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