Answer:
x = - 3, y = 9
Explanation:
Given the 2 equations
3x - y = - 18 → (1)
2x + y = 3 → (2)
Adding the 2 equations term by term will eliminate y, that is
5x = - 15 ( divide both sides by 5 )
x = - 3
Substitute x = - 3 into either of the 2 equations and solve for y
Substituting into (2)
2(- 3) + y = 3
- 6 + y = 3 ( add 6 to both sides )
y = 9
Solution is (- 3, 9 )