To solve the equation using substitution, we need to solve for x by replacing x with the expression on the right side of the equation:
x - 15 = 12 - 8
x = 12 - 8 + 15
x = 4 + 15
x = 19
Therefore, Mikayla is correct in saying that x = 19. Jesse's answer of x = 27 is incorrect.
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)
Thanks
1 answer