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

but make the whole thing
sound like a 6th grader wrote it

1 answer

So like, Mikayla and Jesse both had to find the answer to x-15=12-8. Mikayla said x=19 and Jesse said x=27. To find out who is right, let's do some work!

First, let's rewrite the equation: x-15=12-8

Now, let's solve it using substitution. We can add 15 to both sides to get rid of the -15 on the left side: x-15+15=12-8+15

That simplifies to x=19, just like Mikayla said! So, Mikayla is correct and the answer is x=19. Good job, Mikayla!