7a+72=4a+78

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Solution for 7a+72=4a+78 equation: 



7a+72=4a+78

We move all terms to the left:

7a+72-(4a+78)=0

We get rid of parentheses

7a-4a-78+72=0

We add all the numbers together, and all the variables

3a-6=0

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

3a=6

a=6/3

a=2

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