-7u+8=-9u-6

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



-7u+8=-9u-6

We move all terms to the left:

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

We get rid of parentheses

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

We add all the numbers together, and all the variables

2u+14=0

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

2u=-14

u=-14/2

u=-7

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