In the diagram below of triangle J, K, LJKL, MM is the midpoint of start overline, J, L, end overline JL and NN is the midpoint of start overline, K, L, end overline KL . If mangle, L, K, J, equals, minus, 16, plus, 8, x∠LKJ=−16+8x, and mangle, L, N, M, equals, minus, 23, plus, 9, x∠LNM=−23+9x, what is the measure of angle, L, N, M∠LNM?