Towns X, Y, and Z are on the same straight road. Town Y is between Town X and Town Z. Town X is 57 miles from Town Z, and Town Y is 28 miles from Town Z. What is the distance from Town X to Town Y?

Respuesta :

You have line XYZ, and XY + YZ = 57.
YZ = 28.
Therefore, XY + 28 = 57.
XY = 29.