20=4a+4

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Solution for 20=4a+4 equation: 



20=4a+4

We move all terms to the left:

20-(4a+4)=0

We get rid of parentheses

-4a-4+20=0

We add all the numbers together, and all the variables

-4a+16=0

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

-4a=-16

a=-16/-4

a=+4

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