I hope that it will be help full for u
As we know point slope form ,
(Y- Y1) = m (X- X1)
As given data ,
m = -2/5
(X1,Y1) = (5, -12)
X1= 5 , Y1= -12
putt in the above equation these values, we get
Y-(-12) = (-2/5) ( X-5)
Y+12=(-2/5)X+2
taking LCM we get
Y = ((-2)X-50)/5