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3.5(s-5)-2.1=8.1
We move all terms to the left:
3.5(s-5)-2.1-(8.1)=0
We add all the numbers together, and all the variables
3.5(s-5)-10.2=0
We multiply parentheses
3.5s-17.5-10.2=0
We add all the numbers together, and all the variables
3.5s-27.7=0
We move all terms containing s to the left, all other terms to the right
3.5s=27.7
s=27.7/3.5
s=7+1/1.09375
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