Answer:
(- 4, 1 )
Explanation:
Given the 2 equations
2.5x - 3y = - 13 → (1)
3.25x - y = - 14 → (2)
Multiplying (2) by - 3 and adding to (1) will eliminate the term in y
- 9.75 + 3y = 42 → (3)
Add (1) and (3) term by term
- 7.25x = 29 ( divide both sides by - 7.25 )
x = - 4
Substitute x = - 4 in either of the 2 equations and solve for y
Substituting in (1)
- 10 - 3y = - 13 ( add 10 to both sides )
- 3y = - 3 ( divide both sides by - 3 )
y = 1
Solution is (- 4, 1 )