Substitution would be favored of the methods because we are given the "value" of y (1/2x + 6 ) so we could easily substitute 1/2x + 6 for y into -2x + 4y = 24
Graphing could work but there is no need because we can easily substitute
Elimination is used when the constant of y and x in both equations are the same. no constant of x and y are the same in the context therefore elimination should not be used.
