Which of these systems of equations has a solution of (6,−7)? A x−2y=20 2x−y=19 B x−2y=20 2x+y=19 C x+2y=20 2x−y=19 D x+2y=20 2x+y=19

asked Jan 20, 2021 192k views

2 votes

Which of these systems of equations has a solution of (6,−7)?

A
x−2y=20
2x−y=19
B
x−2y=20
2x+y=19
C
x+2y=20
2x−y=19
D
x+2y=20
2x+y=19

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5 votes

Answer:

x-2y=20

2x-y=19

4.4k points

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