Mikayla and Jesse both solved the equation x−15=12−8, using substitution. Mikayla says the answer is x=19, and Jesse says the answer is x=27. Which student is correct, and how do you know? Show your work and explain your thinking. (2 points)

Answer 1

Mikayla is correct.

To show this, we can solve the equation using algebra.

x−15=12−8
x−15=4
x=4+15
x=19

Therefore, Mikayla is correct and the answer is x=19.