Answer:
(- 4, 4 )
Explanation:
y = - 7x - 24 → (1)
y = - 2x - 4 → (2)
substitute y = - 2x - 4 into (1)
- 2x - 4 = - 7x - 24 ( add 7x to both sides )
5x - 4 = - 24 ( add 4 to both sides )
5x = - 20 ( divide both sides by 5 )
x = - 4
substitute x = - 4 into either of the 2 equations and evaluate for y
substituting into (1)
y = - 7(- 4) - 24 = 28 - 24 = 4
solution is (- 4, 4 )