7+7u=-8-5u+9u

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Solution for 7+7u=-8-5u+9u equation: 



7+7u=-8-5u+9u

We move all terms to the left:

7+7u-(-8-5u+9u)=0

We add all the numbers together, and all the variables

7u-(4u-8)+7=0

We get rid of parentheses

7u-4u+8+7=0

We add all the numbers together, and all the variables

3u+15=0

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

3u=-15

u=-15/3

u=-5

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