5-3 Solving Multi-Step Inequalities

The sum of nine times a number and fifteen is less than or equal to the sum of twenty-four and ten times the number. 62/87,21 Let n = the number. The solution set is {n|n í9}. To check this answer, substitute a number greater than or equal to ±9 into the original inequality. Let n = ±1. So, the solution checks. Solve each inequality. ................
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