A triangle has a perimeter of 50. If 2 of its sides are equal and the third side is 5 more than the equal sides, the length of the third side is .....

Let x= the length of two of the sides (the ones that are equal)

x + 5 = the length of the third side

x+ x+ x + 5 = 50 add all three sides

3x + 5 + 50

3x = 50 - 4

3x = 45

subtract 5 from both sides x = 15 divide by 3

The length of the third side= x + 5 = 20