For the Given System of Equations, Which Method Would Be $6 x-5 y=34$

Multiple Choice

For the given system of equations, which method would be the most efficient method to use when solving the system of equations: substitution, addition, or either?
- $6 x-5 y=34$
$4 \mathrm{x}+3 \mathrm{y}=28$

A) substitution
B) addition
C) either