Solve the following binary linear equations 6x + 7Y = 20,7x + 6y = 19 and write the detailed points

Solve the following binary linear equations 6x + 7Y = 20,7x + 6y = 19 and write the detailed points

6x+7y=20,①
7x+6y=19②
① + 2
13x+13y=39
x+y=3 ③
① - 6 (3)
y=2
② - 6 (3)
x=1