Explain how Jordan can check her work to be sure she has the correct answer

Answer:
Below!
Step-by-step explanation:
She can substitute the value of x into the equation. If the equation is equal, then she is correct. Please consider checking my solution.
Since both are not equal, Jordan is wrong. Jordon must find his mistake.
In the equation, she made a mistake in step 2. When she was multiplying the minus with the inside value of bracket, everything must be multiplied by a minus. When a minus gets multiplied with a minus, it becomes a plus sign. She didn't realize that.
Hoped this helped.
[tex]BrainiacUser1357[/tex]