20=4a+16

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Solution for 20=4a+16 equation: 



20=4a+16

We move all terms to the left:

20-(4a+16)=0

We get rid of parentheses

-4a-16+20=0

We add all the numbers together, and all the variables

-4a+4=0

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

-4a=-4

a=-4/-4

a=1

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