Answer:
(x, y) = (4, 8)
Step-by-step explanation:
We can multiply the first equation by -8 and the second by +9, then add the result.
-8(9x -6y) +9(8x -5y) = -8(-12) +9(-8)
-72x +48y +72x -45y = 96 -72
3y = 24
y = 8
Substituting for y in the first equation, we have ...
9x -6(8) = -12
9x = 36 . . . . . . add 48
x = 4
The solution is (x, y) = (4, 8).
