-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
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So x=-2
y=4
So we need to put those values and check system.
