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.
To verify who is correct between Mikayla and Jesse, let's solve the equation x−15=12−8 step by step.
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 and the answer is x=19.