-24=-4(a+9)

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Solution for -24=-4(a+9) equation: 



-24=-4(a+9)

We move all terms to the left:

-24-(-4(a+9))=0



We calculate terms in parentheses: -(-4(a+9)), so:

-4(a+9)

We multiply parentheses

-4a-36

Back to the equation:

-(-4a-36)



We get rid of parentheses

4a+36-24=0

We add all the numbers together, and all the variables

4a+12=0

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

4a=-12

a=-12/4

a=-3

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