7u-13=-9(u+5)

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Solution for 7u-13=-9(u+5) equation: 



7u-13=-9(u+5)

We move all terms to the left:

7u-13-(-9(u+5))=0



We calculate terms in parentheses: -(-9(u+5)), so:

-9(u+5)

We multiply parentheses

-9u-45

Back to the equation:

-(-9u-45)



We get rid of parentheses

7u+9u+45-13=0

We add all the numbers together, and all the variables

16u+32=0

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

16u=-32

u=-32/16

u=-2

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