Answer :
Solution
We have the following system of equations:
y=2x+1 (1)
-4x+2y=2 (2)
We can replace the first equation in the second one and we got:
-4x + 2*(2x+1) = 2
And solving for x we got:
-4x +4x +2= 2
2=2
Then the system have infinite solutions