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Mathematics, 27.05.2021 20:30 spiritcampbell56

Es mi examen y no se nada de matematicas ayuda :,) RESUELVE LOS SIGUIENTES EJERCICIOS UTILIZANDO EL MÉTODO DE ELIMINACIÓN DE ECUACIONES
EJERICICO #1:
-4x + y = 5
x + 5y = 8

EJERCICIO # 2:
4x + 2y = 14
5x + 2y = 16

EJERCICIO # 3:
x + 5y = 39
-3x + 82y = 21

EJERICICO #4:
-x – y = -4
x + y = 2

EJERICICO #5:

Un teatro vendió 800 boletos para el espectáculo del viernes en la noche. Un boleto de niño cuesta $4.50 y un boleto de adulto cuesta $6.00. LA cantidad total recolectada fue de $4,500. ¿Cuántos boletos de vendieron de cada tipo?

RESUELVE LOS SIGUIENTES EJERCICIOS UTILIZANDO EL MÉTODO DE SUSTITUCIÓN DE ECUACIONES

EJERCICIO # 6:
2x + 5y = 1
-x + y = 3

EJERCICIO # 7:
3x + y = -3
-3x + y = 11

EJERCICIO # 8:
3x + 7y = 5
2x – 4y = -9

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Answers: 1

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