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(u+7/u+7)+1=u+4/u+3
We move all terms to the left:
(u+7/u+7)+1-(u+4/u+3)=0
Domain of the equation: u+7)!=0
u∈R
Domain of the equation: u+3)!=0We get rid of parentheses
u∈R
u+7/u-u-4/u+7-3+1=0
We multiply all the terms by the denominator
u*u-u*u+7*u-3*u+1*u+7-4=0
We add all the numbers together, and all the variables
5u+u*u-u*u+3=0
Wy multiply elements
u^2-1u^2+5u+3=0
We add all the numbers together, and all the variables
5u+3=0
We move all terms containing u to the left, all other terms to the right
5u=-3
u=-3/5
u=-3/5
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