Answer:
6z-42
Step-by-step explanation:
Answer:
The length of the shortest side is 18 ft
The length of the second side is 21 ft
The length of the third side is 33 ft
Step-by-step explanation:
Let
x ------> the length of the shortest side
y -----> the length of the second side
z ----> the length of the third side
we know that
The perimeter of the deck is
P=x+y+z
P=72 ft
so
72=x+y+z ------> equation A
y=x+3 ------> equation B
z=2x-3 -----> equation C
substitute equation B and equation C in equation A and solve for x
72=x+(x+3)+(2x-3)
72=4x
x=72/4
x=18 ft
Find the value of y
y=18+3=21 ft
Find the value of z
z=2(18)-3=33 ft
therefore
The length of the shortest side is 18 ft
The length of the second side is 21 ft
The length of the third side is 33 ft
X divide by -2
this is your formula
x/ (-2)
