7a-12=2(5a+6)-6a

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Solution for 7a-12=2(5a+6)-6a equation: 



7a-12=2(5a+6)-6a

We move all terms to the left:

7a-12-(2(5a+6)-6a)=0



We calculate terms in parentheses: -(2(5a+6)-6a), so:

2(5a+6)-6a

We add all the numbers together, and all the variables

-6a+2(5a+6)

We multiply parentheses

-6a+10a+12

We add all the numbers together, and all the variables

4a+12

Back to the equation:

-(4a+12)



We get rid of parentheses

7a-4a-12-12=0

We add all the numbers together, and all the variables

3a-24=0

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

3a=24

a=24/3

a=8

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