granadossheyla123 granadossheyla123

14-05-2020
Mathematics

contestada

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

Respuesta :

catalinamora20041 catalinamora20041

15-05-2020

Answer:

A.

x-2y=20

2x-y=19

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