20a-4=5a

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Solution for 20a-4=5a equation: 



20a-4=5a

We move all terms to the left:

20a-4-(5a)=0

We add all the numbers together, and all the variables

15a-4=0

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

15a=4

a=4/15

a=4/15

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