21s-68=289

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Solution for 21s-68=289 equation: 



21s-68=289

We move all terms to the left:

21s-68-(289)=0

We add all the numbers together, and all the variables

21s-357=0

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

21s=357

s=357/21

s=17

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