7(a-6)=3a-(6a+12)

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Solution for 7(a-6)=3a-(6a+12) equation: 



7(a-6)=3a-(6a+12)

We move all terms to the left:

7(a-6)-(3a-(6a+12))=0

We multiply parentheses

7a-(3a-(6a+12))-42=0



We calculate terms in parentheses: -(3a-(6a+12)), so:

3a-(6a+12)

We get rid of parentheses

3a-6a-12

We add all the numbers together, and all the variables

-3a-12

Back to the equation:

-(-3a-12)



We get rid of parentheses

7a+3a+12-42=0

We add all the numbers together, and all the variables

10a-30=0

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

10a=30

a=30/10

a=3

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