SOLUTION: please help me solve this equation x+y=-3 x-y=1

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Question 265509: please help me solve this equation
x+y=-3
x-y=1
Answer by CharlesG2(834) About Me  (Show Source):
You can put this solution on YOUR website!
please help me solve this equation
x+y=-3
x-y=1
x + y = -3 --> x = -3 - y (subsitute this into 2nd equation)
-3 - y - y = 1
-3 - 2y = 1
-2y = 4
y = -2
x + (-2) = -3
x = -3 + 2
x = -1