50=81-s

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Solution for 50=81-s equation:



50=81-s
We move all terms to the left:
50-(81-s)=0
We add all the numbers together, and all the variables
-(-1s+81)+50=0
We get rid of parentheses
1s-81+50=0
We add all the numbers together, and all the variables
s-31=0
We move all terms containing s to the left, all other terms to the right
s=31

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