Answer:
-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[\begin{array}{ccc}\frac{1}{4}*28-\frac{3}{4}*12 \\1*28-2*12\end{array}\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.
