The point where the lines intersect is the point that satisfies both equations.
It is (1, 5), selection C.
Step-by-step explanation:
Since AD bisects BC,
BD = DC.
Therefore 5x - 10 = 3x + 10 and x = 10.
Let the second no. be x
-3x = 21 → x = 21/-3 → x = -7
So it's part of a diameter with the 40, so you should have taken 180-40=140 then it should have been set equal to 140. So 22x+8=140 then 22x=132 then 132÷22=6 so x=6
