" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1) x + 2y = 7
2) 6x + 2y = - 8
Despejo x en 1
x + 2y = 7
x = 7 - 2y
Sustituyo x en 2
6x + 2y = - 8
6 (7 - 2y) + 2y = - 8
42 - 12y + 2y = - 8
- 12y + 2y = - 8 - 42
- 10y = - 50
y = - 50/-10
y = 5
El valor de y sustituyo en el despeje de x
x = 7 - 2y
x = 7 - 2 (5)
x = 7 - 10
x = - 3
Solución :
x = - 3
y = 5