Answer:
The solution set is (-6, 5).
Step-by-step explanation:
-8х - 7y = 13
-3х – 3 y = 3
Multiply the first equation by 3 and the second by -7:
-24x - 21y = 39
21x + 21y = -21 Adding:
-3x = 18
x = -6.
Substitute fro x in equation 1:
-8(-6) - 7y = 13
-7y = 13 - 48 = -35
y = 5.