8a-11=3a+9

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Solution for 8a-11=3a+9 equation: 



8a-11=3a+9

We move all terms to the left:

8a-11-(3a+9)=0

We get rid of parentheses

8a-3a-9-11=0

We add all the numbers together, and all the variables

5a-20=0

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

5a=20

a=20/5

a=4

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