5a-a=28

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Solution for 5a-a=28 equation: 



5a-a=28

We move all terms to the left:

5a-a-(28)=0

We add all the numbers together, and all the variables

4a-28=0

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

4a=28

a=28/4

a=7

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