20=4-8y

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Solution for 20=4-8y equation: 



20=4-8y

We move all terms to the left:

20-(4-8y)=0

We add all the numbers together, and all the variables

-(-8y+4)+20=0

We get rid of parentheses

8y-4+20=0

We add all the numbers together, and all the variables

8y+16=0

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

8y=-16

y=-16/8

y=-2

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