Answer
$(16, -12)$
Work Step by Step
In order to solve this problem, we multiply one or both of the equations by a value that will make one of the variables cancel. We multiply the top equation by -2, and we multiply the bottom equation by 1. Then, we add the two equations to obtain:
$ x + .75x = 28 \\ 1.75x = 28 \\ x =16 $
We plug in the given value into the top equation and solve for the other variable:
$ .5(16) - 1/3 y = 12 \\ -1/3 y = 4 \\ y = -12$
