3s-20=55

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Solution for 3s-20=55 equation: 



3s-20=55

We move all terms to the left:

3s-20-(55)=0

We add all the numbers together, and all the variables

3s-75=0

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

3s=75

s=75/3

s=25

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