To solve this inequality, we will isolate the variable x.
−7 < 2x + 1 < 11
First, subtract 1 from all three parts of the inequality:
−7 - 1 < 2x + 1 - 1 < 11 - 1
−8 < 2x < 10
Next, divide all three parts of the inequality by 2:
-8/2 < 2x/2 < 10/2
-4 < x < 5
Thus, the solution to the inequality is -4 < x < 5.
Solve: −7<2x+1<11
1 answer