the perimeter of a triangle is 49 feet. one side of the triangle is 7 feet shorter than the second side. the third side is 4 feet shorter than the second side. find the length of each side

Answer 1

x + y + z = 49

x=y-7

z = y -4

y-7 + y + y-4 = 49

3y = 49+11 = 60

y = 60/3 = 20 feet = length of the triangle's 2nd side

x = y-7 = 13 feet = length of the 1st side

z = y-4 = 16 feet = length of the 3rd side

13+20+16 = 49 = perimeter