Question 302377
"7 feet longer than it is wide" ___ L = W + 7


"the area of the room is 228 square feet" ___ L * W = 228


substituting ___ (W + 7) * W = 228 ___ W^2 + 7W - 228 = 0


factoring ___ (W - 12) (W + 19) = 0


W = 12


W = 19 not realistic


substituting ___ L = 7 + 12 ___ L = 19