4=0.8w-20

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Solution for 4=0.8w-20 equation: 



4=0.8w-20

We move all terms to the left:

4-(0.8w-20)=0

We get rid of parentheses

-0.8w+20+4=0

We add all the numbers together, and all the variables

-0.8w+24=0

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

-0.8w=-24

w=-24/-0.8

w=+30

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