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Homework Statement
Find h so that:
8x + 7y = 7
16x + hy = 14
has infinitely many solutions (solve this exercise with matrices).
Homework Equations

The Attempt at a Solution
I converted the system to matrix form, but when I try to convert it to echelon form, I get the following result:
8x + 7y = 7
0x + (h  14)y = 28
How can you proceed from that point? I know that the y coefficient shouldn't be 0, because then it would mean that the system has no solutions. However, the problem asks for a value of "h" in which the system has infinitely many solutions.