If (x-1, y +3) = (7, -7), then find the values of x and y respectively.
-8, -10
8, -10
6, -4
8, 10
(x−1,y+3)= (7,−7)
∴ x−1=7 , y+3=−7
x=8 y=−10
Find the value of x and y respectively. 83 - 73 = 1 + x × y × 3