2x - y = 10
x + y = -1
add, we get 3x = 9 So x = 3
Substitute in either equation to get y = -4
Nicole W.
asked 04/16/192x - y = 10
x + y = -1
add, we get 3x = 9 So x = 3
Substitute in either equation to get y = -4
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