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s/2=-0.3
We move all terms to the left:
s/2-(-0.3)=0
We add all the numbers together, and all the variables
s/2+0.3=0
We multiply all the terms by the denominator
s+(0.3)*2=0
We add all the numbers together, and all the variables
s+0.6=0
We move all terms containing s to the left, all other terms to the right
s=-0.6
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