7(a+1)=42

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Solution for 7(a+1)=42 equation: 



7(a+1)=42

We move all terms to the left:

7(a+1)-(42)=0

We multiply parentheses

7a+7-42=0

We add all the numbers together, and all the variables

7a-35=0

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

7a=35

a=35/7

a=5

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