Answer:
(- 3, 1 )
Step-by-step explanation:
2x - 3y = - 9 → (1)
y = - 3x - 8 → (2)
substitute y = - 3x - 8 into (1)
2x - 3(- 3x - 8) = - 9 ← distribute parenthesis and simplify left side
2x + 9x + 24 = - 9
11x + 24 = - 9 ( subtract 24 from both sides )
11x = - 33 ( divide both sides by - 11 )
x = - 3
substitute x = - 3 into (2)
y = - 3(- 3) - 8 = 9 - 8 = 1
solution is (- 3, 1 )
