SOLUTION: 1<-2x+7<9

Question 119858: 1<-2x+7<9
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given inequality

Subtract 7 from all sides

Divide every side by -2 to isolate x. Remember, dividing every side of an inequality by a negative number flips the inequality signs

Rearrange the inequality.

So the solution in interval notation is: (-1,3)

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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