7u+3=4(u+3)

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Solution for 7u+3=4(u+3) equation: 



7u+3=4(u+3)

We move all terms to the left:

7u+3-(4(u+3))=0



We calculate terms in parentheses: -(4(u+3)), so:

4(u+3)

We multiply parentheses

4u+12

Back to the equation:

-(4u+12)



We get rid of parentheses

7u-4u-12+3=0

We add all the numbers together, and all the variables

3u-9=0

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

3u=9

u=9/3

u=3

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