" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x-3y = 4
------------
x= -2
y = 2
1) x - 3y = 4
2) 2x - 3y = 2
Despejo x en 1.
x - 3y = 4
x = 4 + 3y
Sustituyo x en 2.
2x - 3y = 2
2 (4 + 3y) - 3y = 2
8 + 6y - 3y =
8 + 3y = 2
3y = 2 - 8
3y = - 6
y = -6/3
y = - 2
Sustituyo el valor de y en el despeje de x.
x = 4 + 3y
x = 4 + 3 (-2)
x = 4 - 6
x = - 2
Solución :
x = - 2
y = - 2