I would but I don’t know how to explain it all!
Answer:
All you have to do is combine the like terms. Once you do that you get: -4x+3y=-11
Answer:
She made a mistake in Step 7.
Step-by-step explanation:
Step 1 through 6 are correct. Only from Step 6 to Step 7 the problem comes in: both sides of the equation are multiplied by x, however the x on the left side, by error, becomes 1. The correct state in Step 7 should look like this:

Answer: 1 1/3
Step-by-step explanation: Hope this helped!
Answer:
24 in
Step-by-step explanation:
The diameter of a circle is twice its radius which is 12 * 2 = 24.