8a+3=5a+21

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Solution for 8a+3=5a+21 equation: 



8a+3=5a+21

We move all terms to the left:

8a+3-(5a+21)=0

We get rid of parentheses

8a-5a-21+3=0

We add all the numbers together, and all the variables

3a-18=0

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

3a=18

a=18/3

a=6

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