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).

1 answer

To solve the equation x−15=12−8 using substitution, we first need to simplify both sides of the equation.

x - 15 = 12 - 8
x - 15 = 4

Next, we need to solve for x by adding 15 to both sides of the equation.

x - 15 + 15 = 4 + 15
x = 19

Therefore, Mikayla is correct. The answer to the equation x−15=12−8 is x=19.