Answer :

Answer:

m = 13

Step-by-step explanation:

Substitute (5 ,8) in the equation,

  11x - 2y = 3m

 11*5 - 2*8 = 3m

    55 - 16 = 3m

        39    = 3m

Divide both sides by 3

     39 ÷ 3 = m

          13 = m

[tex]\boxed{\bf m = 13}[/tex]