8a+6=3a+21=

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Solution for 8a+6=3a+21= equation: 



8a+6=3a+21=

We move all terms to the left:

8a+6-(3a+21)=0

We get rid of parentheses

8a-3a-21+6=0

We add all the numbers together, and all the variables

5a-15=0

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

5a=15

a=15/5

a=3

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