As given m is a midpoint of ab. So am is half of ab.
So we can write
As given am = 3x+3 , ab = 8x - 6.
So
So x = 6.
So length of am = 3x+3 = 3*6 + 3 = 21
So we can write
As given am = 3x+3 , ab = 8x - 6.
So
So x = 6.
So length of am = 3x+3 = 3*6 + 3 = 21