Answer:
x = 1
y = -3
Step-by-step explanation:
if y = x - 4
then reorganise the first equation
4 (x - 4) = 9x -21
4x - 16 = 9x - 21
5 = 5x
Point form:
(1,-3)
Equation form:
x = 1 ,y = -3
Please let me know if this is incorrect.
Hope I helped though.
