Respuesta :
5x - y = 15 (1)
-10x+2y=-30 (2)
multiply (1) by 2
10x - 2y = 30
-10x + 2y = -30 (2)
---------------------------add
0 = 0
answer
infinitely many solutions
-10x+2y=-30 (2)
multiply (1) by 2
10x - 2y = 30
-10x + 2y = -30 (2)
---------------------------add
0 = 0
answer
infinitely many solutions