Answer: x = 3
Step-by-step explanation:
We are trying to find where these two lines intersect each other.
Now,
−x + y = 1
or, y = x + 1
3x − y = 5
If these two lines intersect, then the value of y coordinate must be the same.
So, substituing y = x + 1 into 3x − y = 5
3x - ( x + 1 ) = 5
3x - x - 1 = 5
2x = 6
x = 3
