contestada

Solve the system:
22-4y= 14
3y + 5z =9
A. Or = 1, y=1
B. Or = 1, y=-
C.Or=3, y=2
D.O2 = 5, y=-1

Respuesta :

Answer:

[tex]y=2,\ z=\frac{3}{5}[/tex]

Step-by-step explanation:

Given the following system of equations:

[tex]\left \{ {{22-4y= 14} \atop {3y + 5z =9}} \right.[/tex]

You can follow these steps to solve it using the Substitutiong method:

1. Solve for "y" from the first equation in order to finds its value:

[tex]22-4y= 14\\\\-4y= 14-22\\\\y=\frac{-8}{-4}\\\\y=2[/tex]

2. Substitute the value for "y" into the second equation and solve for "z" in order to find its value. This is:

[tex]3(2) + 5z =9\\\\5z=9-6\\\\z=\frac{3}{5}[/tex]