-5(9+4a)=5(3+2a)

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Solution for -5(9+4a)=5(3+2a) equation: 



-5(9+4a)=5(3+2a)

We move all terms to the left:

-5(9+4a)-(5(3+2a))=0

We add all the numbers together, and all the variables

-5(4a+9)-(5(2a+3))=0

We multiply parentheses

-20a-(5(2a+3))-45=0



We calculate terms in parentheses: -(5(2a+3)), so:

5(2a+3)

We multiply parentheses

10a+15

Back to the equation:

-(10a+15)



We get rid of parentheses

-20a-10a-15-45=0

We add all the numbers together, and all the variables

-30a-60=0

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

-30a=60

a=60/-30

a=-2

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