Hi don’t know but have a wonderful day
In order to solve this we need to get x by itself on one side.
We need o start by adding across the 4 so that we get:
x/3 = -7 + 4 = -3
We then need to multiply both sides by 3 to get a singular x:
x = -3 * 3 = -9
The answer is x=20. You isolate the square root. Eliminate the radical on the left handside. And then solve it!
Answer B. there are any restrictions. You can represent it in any x point