Answer:
Solving the inequality
we get the value of a:

Explanation:
We need to solve the inequality:

We need to solve the inequality, to find the value of a.
Solving the inequality:

First step is Switching both sides (the inequality will be reversed)

The next step is to multiply both sides by -2 and reverse the inequality

Now, subtracting 7 on both sides

So, solving the inequality
we get the value of a:
