Final answer:
To check the student's solution, substitute each value of a into the equation 8y = 0. If it holds true, the solution is correct.
Step-by-step explanation:
This question seems to be about solving a system of linear equations. The equations provided, y = 2y = 5y = 0, can be simplified to 8y = 0. To check the student's solution, substitute each value of a, which is 1, 3, 6, 10, -4, and -7, into the equation. If 8y = 0 holds true, then the solution is correct.