SOLUTION: 3x<7x-28

Question 581874: 3x<7x-28
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given inequality.

Subtract from both sides.

Combine like terms on the left 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 solution 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

Note: the endpoint is an open circle.
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