-(-a+12)+15=51+(-6+7a)

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Solution for -(-a+12)+15=51+(-6+7a) equation: 



-(-a+12)+15=51+(-6+7a)

We move all terms to the left:

-(-a+12)+15-(51+(-6+7a))=0

We add all the numbers together, and all the variables

-(-1a+12)-(51+(7a-6))+15=0

We get rid of parentheses

1a-(51+(7a-6))-12+15=0



We calculate terms in parentheses: -(51+(7a-6)), so:

51+(7a-6)

determiningTheFunctionDomain
(7a-6)+51

We get rid of parentheses

7a-6+51

We add all the numbers together, and all the variables

7a+45

Back to the equation:

-(7a+45)



We add all the numbers together, and all the variables

a-(7a+45)+3=0

We get rid of parentheses

a-7a-45+3=0

We add all the numbers together, and all the variables

-6a-42=0

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

-6a=42

a=42/-6

a=-7

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