Answer:
(- 1, - 1 )
Step-by-step explanation:
Given the 2 equations
y = 4x + 3 → (1)
x + y = - 2 → (2)
Substitute y = 4x + 3 into (2)
x + 4x + 3 = - 2, that is
5x + 3 = - 2 ( subtract 3 from both sides )
5x = - 5 ( divide both sides by 5 )
x = - 1
Substitute x = - 1 into (1)
y = 4(- 1) + 3 = - 4 + 3 = - 1
Thus x- value is - 1 and y- value is - 1
