7-6u=-8u-9

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Solution for 7-6u=-8u-9 equation: 



7-6u=-8u-9

We move all terms to the left:

7-6u-(-8u-9)=0

We get rid of parentheses

-6u+8u+9+7=0

We add all the numbers together, and all the variables

2u+16=0

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

2u=-16

u=-16/2

u=-8

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