Distribute −1: Distribute −1 across the parentheses. −1(n−9) becomes −1⋅n+1⋅9, which simplifies to −n+9.Calculation: −1(n−9)=−n+9
Move terms: Move all terms involving n to one side and constant terms to the other side of the inequality to isolate n. Calculation: -n + 9 < 1 \rightarrow -n + 9 - 9 < 1 - 9 \rightarrow -n < -8
Divide and solve: Divide both sides of the inequality by −1 to solve for n. Remember that dividing by a negative number reverses the inequality sign.Calculation: -\frac{n}{-1} > -\frac{8}{-1} \rightarrow n > 8
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