Question

2x - y = 4

6x - 3y = 7

(a) y = 2x - 4
(b)No solution
(c)x = 2, y = -4
(d)x = 2, y = 5/3

Answer 1

Multiply first equation by 3.

6x - 3y = 12
6x - 3y = 7

Does this make the answer clear?