5x + 2y = -1 --- (1)
-4x - y = -4 --- (2)
From (2), we have:
y = -4x + 4 --- (3)
Substituting (3) into (1), we have:
5x + 2(-4x + 4) = -1
5x - 8x + 8 = -1
-3x = -1 - 8
-3x = -9
x = -9 / -3
x = 3
Substituting x = 3 into (3), we have:
y = -4(3) + 4
y = -12 + 4
y = -8
Hence, x = 3 and y = -8.