Question 66169
if x is equal to the length of the base of the triangle then 4x-8 is equal to the length of the two remaining sides.  Now just solve the equation for x.<br>

2(4x-8) + x = 29
8x - 16 + x = 29
9x - 16 = 29
9x = 45
x = 5<br>

so the length of one of the legs is:
4(5)-8
20-8
12