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 thinki
To determine who is correct, let's solve the equation using substitution:
x - 15 = 12 - 8
x - 15 = 4
x = 4 + 15
x = 19
Therefore, Mikayla is correct and the answer is x = 19. Jesse's answer of x = 27 is incorrect. This can be confirmed by plugging x = 19 back into the original equation:
19 - 15 = 12 - 8
4 = 4
Since both sides of the equation are equal when x = 19, Mikayla's answer is correct.