X = Lilys weight x + 34 = Arthurs weight 4x - 180 = combined weight
x + x + 34 = 4x = 180 2x + 34 = 4x - 180 -2x -2x _________________ 34 = 2x -180 +180 + 180 _______________ 214 = 2x 107 = x which is Lily's weight 141 = x + 34 which is Arthur's weight The total weight is 248
which is the answer that you get when you do 4(107) = 180 or 428 -180 = 248
