Answer:
(- 6, 14 )
Explanation:
Given the 2 equations
x + y = 8 → (1)
2x + y = 2 → (2)
Multiplying (1) by - 1 and adding to (2) will eliminate the y- term
- x - y = - 8 → (3)
Add (2) and (3) term by term to eliminate y, that is
x = - 6
Substitute x = - 6 into either of the 2 equations and evaluate for y
Substituting into (1)
- 6 + y = 8 ( add 6 to both sides )
y = 14
solution is (- 6, 14 )