Which ordered pair (m, n) is the solution to the given system of linear equations?

(6m-5n = 14

12m+ 2n=-10

(4,-1)

(11,-16)

• (-1,-4)

• (-16, 11)

Respuesta :

Answer : The ordered pair (m, n) is, (-1,-4)

Step-by-step explanation:

The given equations are:

[tex]6m-5n=14[/tex]       ..........(1)

[tex]2m+2n=-10[/tex]       ..........(2)

Using elimination method:

We are multiplying equation 2 by 3, we get:

[tex]6m+6n=-30[/tex]       ..........(3)

Now subtracting equation 1 from 3, we get the value of 'm'.

[tex]6m+6n-6m+5n=-30-14[/tex]

[tex]11m=-44[/tex]

[tex]m=-4[/tex]

Now put the value m in equation 3, we get the value of 'n'.

[tex]6m+6n=-30[/tex]

[tex]6(-4)+6n=-30[/tex]

[tex]-24+6n=-30[/tex]

[tex]6n=-30+24[/tex]

[tex]6n=-6[/tex]

[tex]n=-1[/tex]

Thus, the ordered pair (m, n) is, (-1,-4)

Answer:

C

(-1,-4)

Step-by-step explanation: