Julio tested the point (4, –2) to see whether it is a solution to this system of equations. –3x – 2y = –8,
y = 2x – 5

His work is shown below.

Negative 3 (4) minus 2 (negative 2) = negative 8. Negative 12 + 4 = negative 8. Negative 8 = negative 8. Therefore, (4, negative 2) is a solution to the system.

Did Julio verify the solution?
a. No. He substituted 4 and –2 for the wrong variables.
b. No. He did not check the point in the second equation.
c. No. He simplified the equation incorrectly.
d. Yes. He verified that (4, –2) is a solution to the system of equations.