Answer:
x = - 2, y = - 8
Explanation:
13x - 6y = 22 → (1)
x = y + 6 → (2)
substitute x = y + 6 into (1)
13(y + 6) - 6y = 22
13y + 78 - 6y = 22
7y + 78 = 22 ( subtract 78 from both sides )
7y = - 56 ( divide both sides by 7 )
y = - 8
substitute y = - 8 into (2)
x = y + 6 = - 8 + 6 = - 2
then x = - 2 and y = - 8