91) (5, 4) is a solution to which of the following
systems of linear equations?
A) x + 6y = 18 B) 4x + 2y = 12
3x-27=-6
3x - y = -15
C) 2x - 3y = -2 D) 8x + 5y = 40
4x + y = 24
x-7y=-14