10x + 2y = -6
6x + y = 1
In the system of equations above, what is the value of x?  Select the correct option:
A) 2
B) 3
C) 4
D) 5
E) 6
10x + 2y = -6 can be written as 5x + y = -3   Let's subtract the second equation from this equation.   -x = -4   x = 4   The answer is 4.
<result>C</result>
10x + 2y = -6
6x + y = 1
In the system of equations above, what is the value of x?