What is r-1-2r less than or equal to - 2? I need to show my work also.

(r - 1 - 2r) < = - 2. Simplify.

r - 2r < = - 2 + 1.

-r < = - 1. Divide both sides by - 1 and reverse the sign. Recall in inequality

when you multiply or divide by negative, the inequality sign is

reversed.

r > = - 1/-1

r > = 1.

That's it.