6(u+7)+7u=3

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Solution for 6(u+7)+7u=3 equation: 



6(u+7)+7u=3

We move all terms to the left:

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

We add all the numbers together, and all the variables

7u+6(u+7)-3=0

We multiply parentheses

7u+6u+42-3=0

We add all the numbers together, and all the variables

13u+39=0

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

13u=-39

u=-39/13

u=-3

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