Question

Which ordered pair (x, y) is a solution to given system of linear equations? 3x+y=1 5x+y=3

Answer 1

x=1 y=0 I think that is the answer

Answer 2

3x + y = 1.....multiply by -1
5x + y = 3
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-3x - y = -1 (result of multiplying by -1)
5x + y = 3
-------------add
2x = 2
x = 2/2
x = 1

3x + y = 1
3(1) + y = 1
3 + y = 1
y = 1 - 3
y = -2

solution is (1,-2)