Answer: 
There is one solution.
Explanation:
x = - 1/6 
 y = 0 
 
It can be solved simultaneously 
 
6x - y = -1 
 6x + y = -1 
 
Subtract equation two from equation one 
 
-2y = 0 
 
Divide both sides by-2 
 
y = 0/-2 
 y = 0 
 
Substitute 0 for y in either of the equations to get x 
 
6x - 0 = -1 
 6x = -1 
 
Divide both sides by 6 
 
x = -1/6