Respuesta:
x = 3 billetes de $ 5000
y = 4 billetes de $ 2000
Explicación paso a paso:
L1 x + y = 7
L2 5000x + 2000y = 23000
x + y = 7
x = 7 - y
5000x + 2000y = 23000
5000(7 - y) + 2000y = 23000
35000 - 5000y + 2000y = 23000
-3000y = 23000 - 35000
-3000y = -120000
y = -12000 / -3000
y = 4
x = 7 - 4
x = 3
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Respuesta:
x = 3 billetes de $ 5000
y = 4 billetes de $ 2000
Explicación paso a paso:
L1 x + y = 7
L2 5000x + 2000y = 23000
x + y = 7
x = 7 - y
5000x + 2000y = 23000
5000(7 - y) + 2000y = 23000
35000 - 5000y + 2000y = 23000
-3000y = 23000 - 35000
-3000y = -120000
y = -12000 / -3000
y = 4
x = 7 - y
x = 7 - 4
x = 3