Answer:
4x and -2x
Step-by-step explanation:
The error was on step 3, and she found the error on step 4.
Explanation: on step 3, the 12 was supposed to be a negative, but it wasn’t. So she solved it on step 4, and added the negative sign.
Answer:
x= 0 I believe the answer would be false.
The first one is x=7
the second one i think is k= 11/3