7(u+6)=-6(-5u+5)-9u

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Solution for 7(u+6)=-6(-5u+5)-9u equation: 



7(u+6)=-6(-5u+5)-9u

We move all terms to the left:

7(u+6)-(-6(-5u+5)-9u)=0

We multiply parentheses

7u-(-6(-5u+5)-9u)+42=0



We calculate terms in parentheses: -(-6(-5u+5)-9u), so:

-6(-5u+5)-9u

We add all the numbers together, and all the variables

-9u-6(-5u+5)

We multiply parentheses

-9u+30u-30

We add all the numbers together, and all the variables

21u-30

Back to the equation:

-(21u-30)



We get rid of parentheses

7u-21u+30+42=0

We add all the numbers together, and all the variables

-14u+72=0

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

-14u=-72

u=-72/-14

u=5+1/7

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