2x - y = -4
-3x + y = -9
From the first equation:
y = 2x + 4
Substitute this into the second equation:
-3x + 2x + 4 = -9
-x + 4 = -9
-x = -13
x = 13
Then plug this answer back into the first equation
2*13 - y = -4
26 - y = -4
-y = -30
y = 30
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