-3=2u+-7

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Solution for -3=2u+-7 equation: 



-3=2u+-7

We move all terms to the left:

-3-(2u+-7)=0

We add all the numbers together, and all the variables

-(2u-7)-3=0

We get rid of parentheses

-2u+7-3=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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