2a+3(4a)=42

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Solution for 2a+3(4a)=42 equation: 



2a+3(4a)=42

We move all terms to the left:

2a+3(4a)-(42)=0

We add all the numbers together, and all the variables

36a-42=0

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

36a=42

a=42/36

a=1+1/6

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