Question

Please help!!! Which system of linear equations can be solved using the equation?

Answer 1

C

Explanation:

Edge2020

Answer 2

-8x+3y=28

4x-y=-12

Explanation:

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

`\left[\begin{array}{ccc}(1)/(4)*28-(3)/(4)*12 \\1*28-2*12\end{array}\right]`

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.