Answer:
40
Step-by-step explanation:
Answer:
x=5
Step-by-step explanation:
First, let's understand logarithms.
When there is no base given, like in this problem's right side of the equation, the base is automatically 10.
So, let's re-write that.

Now, let's test a few of the numbers out. For brevity, I already know it's 3. Let's show you why.

Answer:
x > -3
Step-by-step explanation:
-2x < 9 - 3
-2x < 6
-x < 3
x > -3