Math
posted by Mister Max
–0.4 n ≤ 6.8

Arora
 0.4 * n ≤ 6.8
Divide both sides by 0.4:
 n ≤ 17
Multiply both sides by 1:
(Note that multiplying or dividing by a negative number changes the direction of the inequality)
n ≥ 17
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