7u-9=2u+6

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



7u-9=2u+6

We move all terms to the left:

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

We get rid of parentheses

7u-2u-6-9=0

We add all the numbers together, and all the variables

5u-15=0

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

5u=15

u=15/5

u=3

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