3=-5+2u

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Solution for 3=-5+2u equation: 



3=-5+2u

We move all terms to the left:

3-(-5+2u)=0

We add all the numbers together, and all the variables

-(2u-5)+3=0

We get rid of parentheses

-2u+5+3=0

We add all the numbers together, and all the variables

-2u+8=0

We move all terms containing u to the left, all other terms to the right

-2u=-8

u=-8/-2

u=+4

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