-5(3a-3)=6(-7a-7)

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Solution for -5(3a-3)=6(-7a-7) equation: 



-5(3a-3)=6(-7a-7)

We move all terms to the left:

-5(3a-3)-(6(-7a-7))=0

We multiply parentheses

-15a-(6(-7a-7))+15=0



We calculate terms in parentheses: -(6(-7a-7)), so:

6(-7a-7)

We multiply parentheses

-42a-42

Back to the equation:

-(-42a-42)



We get rid of parentheses

-15a+42a+42+15=0

We add all the numbers together, and all the variables

27a+57=0

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

27a=-57

a=-57/27

a=-2+1/9

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