Question

What is the value of X? Make sure to show all of your work!

Answer 1

Equilateral triangle because all three sides are equal.So all three internal angles are also congruent to each other and are each 60 degrees

7x - 3 = 60
7x = 63
  x = 9

if you need to find for y
11y + 5 = 60
11y = 55
    y = 5