SOLUTION: -14<7x<21

Question 126044: -14<7x<21
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given inequality

Divide every side by 7 to isolate x.

So the solution in interval notation is: (-2,3)

Now let's graph the solution set

Note: at there is a open circle (which means this point is excluded) and at there is a open circle (which means this point is excluded)

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