As isosceles triangle has two sides of equal length. If the third side of an isosceles triangle is five inches longer than one of the equal sides, and the perimeter is 26 inches, find the length of each side.

Answer 1

x, x and (x+5)

3 x + 5 = 26
so
3x = 21
x = 7
x = 7
x+5 = 12