5a-9=20

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Solution for 5a-9=20 equation: 



5a-9=20

We move all terms to the left:

5a-9-(20)=0

We add all the numbers together, and all the variables

5a-29=0

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

5a=29

a=29/5

a=5+4/5

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