3(s-20)=20

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Solution for 3(s-20)=20 equation: 



3(s-20)=20

We move all terms to the left:

3(s-20)-(20)=0

We multiply parentheses

3s-60-20=0

We add all the numbers together, and all the variables

3s-80=0

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

3s=80

s=80/3

s=26+2/3

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