Point M is on line segment LN. Given MN = 3x, LN = 4x + 9, andLM = 2x + 7, determine the numerical length of LM.
(4x + 9) - (2x + 7) = 2x + 16, x = 16.
2(16) + 7 = 39
What have you done?!
MN + LM = LN
3x + 2x + 7 = 4x + 9
x = 2
