Mikayla and Jesse both solved the equation x-15=12-8, using substitution. Mikayla says the answer is x=19, and which Jesse says the answer is x=27. Which student is correct, how do you know? Show your work and explain your thinking.
To solve the equation x-15=12-8 using substitution, we need to first simplify the right side of the equation:
12-8 = 4
Now, we substitute this value back into the equation:
x-15 = 4
Next, we add 15 to both sides of the equation to isolate x:
x = 4 + 15
x = 19
Therefore, Mikayla is correct. The answer is x=19.