SOLUTION: -9-3m-m<9m-9

Question 178191: -9-3m-m<9m-9
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given inequality.

Combine like terms on the left side.

Add to both sides.

Subtract from both sides.

Combine like terms on the left side.

Combine like terms on the right side.

Divide both sides by to isolate . note: Remember, the inequality sign flips when we divide both sides by a negative number.

Reduce.

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Answer:

So the answer is

So the answer in interval notation is

Also, the answer in set-builder notation is

Here's the graph of the solution set on the number line:

Graph of the solution set where there is an open circle at the endpoint

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