39=3u+2u-6

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Solution for 39=3u+2u-6 equation: 



39=3u+2u-6

We move all terms to the left:

39-(3u+2u-6)=0

We add all the numbers together, and all the variables

-(5u-6)+39=0

We get rid of parentheses

-5u+6+39=0

We add all the numbers together, and all the variables

-5u+45=0

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

-5u=-45

u=-45/-5

u=+9

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