help with number 4 please. show work
4r + 9/4r + 14 = 5r - 3/4r + 1 - 34r + 9/4r + 3/4r - 5r = -14 +1 - 3-r + 9/4r + 3/4r = -16-r + 12/4r = -16-r + 3r = -16+2r = -16r = -16/2r = -8