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6.9s=82.8
We move all terms to the left:
6.9s-(82.8)=0
We add all the numbers together, and all the variables
6.9s-82.8=0
We move all terms containing s to the left, all other terms to the right
6.9s=82.8
s=82.8/6.9
s=11+1/1
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