3g-24=4h
-2+2h=g

3g-24=4h
-2+2h=g

Substitution or elimination method?

Yes, which method? Or do you not know which to use?
I suggest substitution

Elimination is probably easier.

To do elimination, you have to rearrange the whole thing. G already has a value to plug in.

I would go for elimination too... Only the second equation, moving the h to the right and the g to the left would be the only rearrangement to do.