Answer: x=30
Step-by-step explanation: There are other ways to do it but here's how I personally would've done it.
1/5x -2= 4 Step One: Add 2 to both sides, canceling 2 on the left side
1/5x=6 Step Two: Divide each side by 1/5 canceling 1/5 on the left
6 divided by 1/5 is 30 (Do Keep Change Flip Method)
So the answer is 30! Hope that helps!