A+4(a-3)=15+(2a+9)

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Solution for A+4(a-3)=15+(2a+9) equation: 



+4(A-3)=15+(2A+9)

We move all terms to the left:

+4(A-3)-(15+(2A+9))=0

We multiply parentheses

4A-(15+(2A+9))-12=0



We calculate terms in parentheses: -(15+(2A+9)), so:

15+(2A+9)

determiningTheFunctionDomain
(2A+9)+15

We get rid of parentheses

2A+9+15

We add all the numbers together, and all the variables

2A+24

Back to the equation:

-(2A+24)



We get rid of parentheses

4A-2A-24-12=0

We add all the numbers together, and all the variables

2A-36=0

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

2A=36

A=36/2

A=18

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