4a+8=28-a

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Solution for 4a+8=28-a equation: 



4a+8=28-a

We move all terms to the left:

4a+8-(28-a)=0

We add all the numbers together, and all the variables

4a-(-1a+28)+8=0

We get rid of parentheses

4a+1a-28+8=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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