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Solve system of equation. check by substitution?

x-y=3
x+y=minus1

2006-11-24 11:42:40 · 1 answers · asked by bbrown0991 1 in Science & Mathematics ➔ Mathematics

1 answers

c'mon dude, these are easy.

Add second to first.

2x = 2, x = 1, therefore y = -2.

2006-11-24 11:54:18 · answer #1 · answered by Jim Burnell 6 · 1⤊ 0⤋

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