Respuesta :

sqdancefan

Answer:

  74°

Step-by-step explanation:

The given congruence relations mean ...

  3x -7 = 6x -88

  81 = 3x . . . . . . . add 88-3x

  (3x -7)° = (81 -7)° = 74°

The measure of angle XMZ is 74°.