3a+5(3a+1)=-5(-4-3a)

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Solution for 3a+5(3a+1)=-5(-4-3a) equation: 



3a+5(3a+1)=-5(-4-3a)

We move all terms to the left:

3a+5(3a+1)-(-5(-4-3a))=0

We add all the numbers together, and all the variables

3a+5(3a+1)-(-5(-3a-4))=0

We multiply parentheses

3a+15a-(-5(-3a-4))+5=0



We calculate terms in parentheses: -(-5(-3a-4)), so:

-5(-3a-4)

We multiply parentheses

15a+20

Back to the equation:

-(15a+20)



We add all the numbers together, and all the variables

18a-(15a+20)+5=0

We get rid of parentheses

18a-15a-20+5=0

We add all the numbers together, and all the variables

3a-15=0

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

3a=15

a=15/3

a=5

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