Answer:
y = 3x +1 (1)
2y = 6x +2 (2)
We can devide equation (2) by 2 and we got:
(3)
And since equations (1) and (3) are equal we can do this:

And that implies:

And for this case we will have infinite solutions for the sytem given since we have two lines equal
Explanation:
For this case we have the following system of equations given:
y = 3x +1 (1)
2y = 6x +2 (2)
We can devide equation (2) by 2 and we got:
(3)
And since equations (1) and (3) are equal we can do this:

And that implies:

And for this case we will have infinite solutions for the sytem given since we have two lines equal