SOLUTION: Solve the following systems. Write answers as an ordered pair. y-x =5 x+y = -1

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Question 95007: Solve the following systems. Write answers as an ordered pair.
y-x =5
x+y = -1
Answer by kiljoy(51) About Me  (Show Source):
You can put this solution on YOUR website!
There is a few ways to solve this. We can use the addition method instead of substitution because your equations are lined up for it.
+y-x=5+
+y%2Bx=-1+ Because we're going to solve by addition, I reversed the x and y values in your original equation.
Now add downward.
The x values cancel out leaving.
+2y=4
+y=2
Now plugin our solved y value to the original equation +y-x=5+ and solve.
+2-x=5+
+-x=3+
+x=-3+
This gives you the ordered pair (-3,2)
Check by plugging the values into either equation.
+y-x=5+
+2-%28-3%29=5+
+5=5