The other person is literally wrong. The answer is D. Supplementary because two angles that add up to 180 are supplementary angles.
A line is a collection of points in a linear direction that goes on infinitely in opposite directions.
X+ 3y = 1 -----(first equation)
-2x+7 = -23 ---(second equation)
-2x = -23-7
x = 30/2
x = 15
Now, Substitute the value of x in first equation,
15 + 3y = 1
3y = 1 - 15
y = -14/3
In short, Final Answers are: x = 15 & y = -14/3
Hope this helps!
The answer for w is w=3.5 <span />
