4a=66-7a

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Solution for 4a=66-7a equation: 



4a=66-7a

We move all terms to the left:

4a-(66-7a)=0

We add all the numbers together, and all the variables

4a-(-7a+66)=0

We get rid of parentheses

4a+7a-66=0

We add all the numbers together, and all the variables

11a-66=0

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

11a=66

a=66/11

a=6

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