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From the first equation, we have x = -2y - 10.
Substitute x = -2y - 10 into the second equation:
-10(-2y - 10) - y = -14
20y + 100 - y = -14
19y + 100 = -14
19y = -114
y = -6
Now substitute y = -6 into x = -2y - 10:
x = -2(-6) - 10
x = 12 - 10
x = 2
So, the solution to the system of equations is x = 2 and y = -6.