To solve this problem, first we need to substitute the numbers into the equation. So, for Mikayla's answer, we get x-15=12-8. Then we need to add the numbers together to find x. So, 12-8=4. Then we add 15 to both sides to get x by itself. x=4+15=19. So, Mikayla is right and x=19.
But for Jesse's answer, it's not the same. x-15=12-8, then we get x-15=4. Then we add 15 to both sides to get x by itself. x=4+15=19. So, Jesse is wrong because x=19 not 27. Mikayla is right!
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 it sound like a 6th grader wrote it
1 answer