The correct answer is c (2x+10)
I think her error was that she multiplied he numbers wrong
The answer to the question is: y=-47
Answer:
Hey there! First you start with parenthesis! So distribute the 2 to 3x. There you get 6x. Now distribute to the 3. You get 6. Now you move the 2x over to the right side. Getting 30=4x+6.. Now move the 6 over to the 30. You get 24=4x..Now you divide, getting the answer 6! Hope this helps...
Answer is 6