7a=a+66

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Solution for 7a=a+66 equation: 



7a=a+66

We move all terms to the left:

7a-(a+66)=0

We get rid of parentheses

7a-a-66=0

We add all the numbers together, and all the variables

6a-66=0

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

6a=66

a=66/6

a=11

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