7a+a=42

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Solution for 7a+a=42 equation: 



7a+a=42

We move all terms to the left:

7a+a-(42)=0

We add all the numbers together, and all the variables

8a-42=0

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

8a=42

a=42/8

a=5+1/4

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