SOLUTION: How do I solve this problem for Solving Systems of Linear Equations by Addition: -10x-y= -3 -2x+y= -9

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Question 283704: How do I solve this problem for Solving Systems of Linear Equations by Addition:
-10x-y= -3
-2x+y= -9
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How do I solve this problem for Solving Systems of Linear Equations by Addition:
-10x-y= -3
-2x +y= -9
Since the y terms are both 1, add the equations.
-10x-y= -3
-2x +y= -9
------------- Add
-12x = -12
x = 1
------
-2*1 + y = -9
y = -7