-7-2a=-7+2(a+4)

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Solution for -7-2a=-7+2(a+4) equation: 



-7-2a=-7+2(a+4)

We move all terms to the left:

-7-2a-(-7+2(a+4))=0



We calculate terms in parentheses: -(-7+2(a+4)), so:

-7+2(a+4)

determiningTheFunctionDomain
2(a+4)-7

We multiply parentheses

2a+8-7

We add all the numbers together, and all the variables

2a+1

Back to the equation:

-(2a+1)



We get rid of parentheses

-2a-2a-1-7=0

We add all the numbers together, and all the variables

-4a-8=0

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

-4a=8

a=8/-4

a=-2

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