Respuesta :

-8x+3y=28

4x-y=-12

Step-by-step explanation:

Let's find x and y from matrices and then check for this systems.

[tex]\left \[[ {{\frac{1}{4} *28-\frac{3}{4}-12 } \atop {1*28-2*12}} \right.][/tex]

Simplify, so we got

7-9

28-24

------

So x=-2

y=4

So we need to put those values and check system.

Otras preguntas