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 determine who is correct, let's solve the equation using substitution.
Given equation: x - 15 = 12 - 8
First, let's simplify the right side of the equation:
12 - 8 = 4
Now we can rewrite the equation with the simplified right side:
x - 15 = 4
Now, add 15 to both sides of the equation to isolate x:
x = 4 + 15
x = 19
Therefore, the correct answer is x = 19. Mikayla's answer is correct. Jesse's answer of x = 27 is incorrect.