Answer:
(- 11, - 4 )
Explanation:
4x - 6y = - 20 → (1)
- 2x + 4y = 6 → (2)
multiplying (2) by 2 and adding to (1) will eliminate x
- 4x + 8y = 12 → (3)
add (1) and (3) term by term to eliminate x
0 + 2y = - 8
2y = - 8 ( divide both sides by 2 )
y = - 4
substitute y = - 4 into either of the 2 equations and solve for x
substituting into (1)
4x - 6(- 4) = - 20
4x + 24 = - 20 ( subtract 24 from both sides )
4x = - 44 ( divide both sides by 4 )
x = - 11
solution is (- 11, - 4 )