-18-7a=-5+4(a+5)

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Solution for -18-7a=-5+4(a+5) equation: 



-18-7a=-5+4(a+5)

We move all terms to the left:

-18-7a-(-5+4(a+5))=0



We calculate terms in parentheses: -(-5+4(a+5)), so:

-5+4(a+5)

determiningTheFunctionDomain
4(a+5)-5

We multiply parentheses

4a+20-5

We add all the numbers together, and all the variables

4a+15

Back to the equation:

-(4a+15)



We get rid of parentheses

-7a-4a-15-18=0

We add all the numbers together, and all the variables

-11a-33=0

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

-11a=33

a=33/-11

a=-3

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