-224=-7(8+3a)

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Solution for -224=-7(8+3a) equation: 



-224=-7(8+3a)

We move all terms to the left:

-224-(-7(8+3a))=0

We add all the numbers together, and all the variables

-(-7(3a+8))-224=0



We calculate terms in parentheses: -(-7(3a+8)), so:

-7(3a+8)

We multiply parentheses

-21a-56

Back to the equation:

-(-21a-56)



We get rid of parentheses

21a+56-224=0

We add all the numbers together, and all the variables

21a-168=0

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

21a=168

a=168/21

a=8

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