Answer:
(2, - 1 )
Step-by-step explanation:
6x + 7y = 5 → (1)
7x + 8y = 6 → (2)
Multiplying (1) by 7 and (2) by - 6 and adding will eliminate the x- term
42x + 49y = 35 → (3)
- 42x - 48y = - 36 → (4)
Add (3) and (4) term by term to eliminate x
y = - 1
Substitute y = - 1 into either of the 2 equations and solve for x
Substituting into (1)
6x + 7(- 1) = 5
6x - 7 = 5 ( add 7 to both sides )
6x = 12 ( divide both sides by 6 )
x = 2
solution is (2, - 1 )
