X = 7
The angles are congruent so you’d do, 4x-5=23 and you’d get x = 7
The y-intercept is found by letting x = 0 and finding / calculating y. That would be (0, -10).
The x-int. is found by letting y = 0 and finding x. That would be (10,0).
Take a picture of the problem and then ask your question
4x - y = 2
y = 4x
and 4x + y = 6
As all three of their gradients have been inverted (-1/m), meaning they are perpendicular.
