4(a+3)+4=42

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



4(a+3)+4=42

We move all terms to the left:

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

We add all the numbers together, and all the variables

4(a+3)-38=0

We multiply parentheses

4a+12-38=0

We add all the numbers together, and all the variables

4a-26=0

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

4a=26

a=26/4

a=6+1/2

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