-15-5a=5(2a+9)

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Solution for -15-5a=5(2a+9) equation: 



-15-5a=5(2a+9)

We move all terms to the left:

-15-5a-(5(2a+9))=0



We calculate terms in parentheses: -(5(2a+9)), so:

5(2a+9)

We multiply parentheses

10a+45

Back to the equation:

-(10a+45)



We get rid of parentheses

-5a-10a-45-15=0

We add all the numbers together, and all the variables

-15a-60=0

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

-15a=60

a=60/-15

a=-4

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