7a=3a+6=66

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Solution for 7a=3a+6=66 equation: 



7a=3a+6=66

We move all terms to the left:

7a-(3a+6)=0

We get rid of parentheses

7a-3a-6=0

We add all the numbers together, and all the variables

4a-6=0

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

4a=6

a=6/4

a=1+1/2

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