what are the lengths of all 3 sides of a trinagle that has a perimeter of 81 centimeters and 2 sides that are egual and the 3rd side is 9 centimeters more

Question

what are the lengths are a triangle with a perimeter of 81 centimeters with 2 sides being equally long and the 3rd side 9 more centimeters

Answer 1

x = side length of each equal side

x+9 = 3rd side length

x + x + x+9 = 81

3x+9=81

3x=72

x=24

24,24, 33