First subtract the 3n from both sides, creating the equation, -5 = -48 -43n. Then add 48 to both sides creating, 43 = -43n, then divide both sides by -43 and n = -1.
Adding together the shorter two sides results in 17 m. If these two sides were laid end to end, the sum of their sides (17 m) would be less than the length of the third side. Thus, NO triangle could be constructed with this set of line segments.
