Answer:
x=5
Step-by-step explanation:
angle 60 is congruent to angle (7x+25) because they are alternate interior angles. by setting 7x+25 equal to 60, you have the equation 7x+25=60. now you subtract 25 from both sides of the equation to get 7x=35. divide both sides of the equation by 7 to get your answer of x=5
