-10-7u=10-9u

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Solution for -10-7u=10-9u equation: 



-10-7u=10-9u

We move all terms to the left:

-10-7u-(10-9u)=0

We add all the numbers together, and all the variables

-7u-(-9u+10)-10=0

We get rid of parentheses

-7u+9u-10-10=0

We add all the numbers together, and all the variables

2u-20=0

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

2u=20

u=20/2

u=10

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