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)

Answer 1

To determine which student is correct, let's solve the equation step by step using substitution.

Given equation: x - 15 = 12 - 8

First, simplify the right side of the equation:
12 - 8 = 4

So, the equation becomes:
x - 15 = 4

Now, add 15 to both sides of the equation to isolate x:
x - 15 + 15 = 4 + 15
x = 19

Therefore, Mikayla is correct in stating that the solution to the equation is x = 19.