3a-2(6a-3)=42

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Solution for 3a-2(6a-3)=42 equation: 



3a-2(6a-3)=42

We move all terms to the left:

3a-2(6a-3)-(42)=0

We multiply parentheses

3a-12a+6-42=0

We add all the numbers together, and all the variables

-9a-36=0

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

-9a=36

a=36/-9

a=-4

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