Eunice is in a 30 story office building. If the walk down to the 16th floor is one-third as far as the walk up to the 24th floor, then Eunice is on the th floor.

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)