Answer:
The solution is (-3,-3).
Step-by-step explanation:
Solve using elimination.
5x-7y=6
8x-7y=-3
Multiply the second equation by -1 and add it together to eliminate y.
5x-7y=6
-8x+7y=3
---------------------
-3x =9
Divide each side by -3.
-3x/-3 = 9/-3
x=-3
5x -7y = 6
5(-3) -7y = 6
-15 -7y = 6
-7y = 21
y = 21/-7
y = -3
The solution is (-3,-3).