In this question, you have to isolate <em>x</em>.
First, use the distributive property.

Now that you have distributed, subtract the constants.
Step-by-step explanation:
it will be x in terms of y or vice versa
Since it's a reflection over the x axis, the x coordinates will stay the same while the y coordinates will be opposite of what they are.
After reflected: A'(-2,-3), B'(0,-3), C'(-1,1)
Is that it for the question or is there a picture?