Solve for s
s<-8
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s<\frac{6.4}{-0.8}
Divide both sides by -0.8. Since -0.8 is negative, the inequality direction is changed.
s<\frac{64}{-8}
Expand \frac{6.4}{-0.8} by multiplying both numerator and the denominator by 10.
s<-8
Divide 64 by -8 to get -8.
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