The given equations are S1≡x2+y2−4x−6y+5=0 S2≡x2+y2−2x−4y−1=0 S3≡x2+y2−6x−2y=0 Calculate the value of (S1−S2)S1−S2=0 2x+2y−6=0 x+y−3=0 .......(1) Calculate the value of (S2−S3) S2−S3=0 4x−2y−1=0.....(2) On solving equation (1) and (2), we get x=‌‌