7u+6+2(7u-6)=9

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Solution for 7u+6+2(7u-6)=9 equation: 



7u+6+2(7u-6)=9

We move all terms to the left:

7u+6+2(7u-6)-(9)=0

We add all the numbers together, and all the variables

7u+2(7u-6)-3=0

We multiply parentheses

7u+14u-12-3=0

We add all the numbers together, and all the variables

21u-15=0

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

21u=15

u=15/21

u=5/7

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