7=2u+3

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Solution for 7=2u+3 equation: 



7=2u+3

We move all terms to the left:

7-(2u+3)=0

We get rid of parentheses

-2u-3+7=0

We add all the numbers together, and all the variables

-2u+4=0

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

-2u=-4

u=-4/-2

u=+2

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