4a+8=a+20

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Solution for 4a+8=a+20 equation: 



4a+8=a+20

We move all terms to the left:

4a+8-(a+20)=0

We get rid of parentheses

4a-a-20+8=0

We add all the numbers together, and all the variables

3a-12=0

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

3a=12

a=12/3

a=4

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