Kayla and Riley both solved the equation x-15 = 13-7, using substitution. Kayla says the answer is x=21, and Riley says that answer is x=28. Which student is correct?(1 point) Responses Kayla Kayla Riley Riley Neither Neither Both
To verify which student is correct, we can solve the equation using substitution:
x - 15 = 13 - 7
Simplifying both sides of the equation:
x - 15 = 6
Now, let's solve for x:
x = 6 + 15
x = 21
Therefore, Kayla is correct and the answer is x = 21.