The perimeter is 64ft and the width is 12ft and the length is x+6 what is the length

The length is 20

Step-by-step explanation:

Assuming it is a rectangle:

Perimeter = 2 * length + 2 * width

64 =  2 * (x+6) + 2 * 12

64 = 2 * (x+6) + 24

40 = 2 * (x + 6)

20 = x + 6

x=14

The length is 20.

length is 20 ft

Step-by-step explanation:

first we know that when we add all sides we get the perimeter so one side is 12 ft so it would be 64 ft - 24 ft and you are left with 40 ft for the rest of the perimeter which is two times x+6 because there are 2 remaining sides.

40= 2(x+6)

40= 2x + 12

-12 -12

28= 2x. divide by 2 both sides

14=x

so (14)+6=20

the answer is stop cheating on things stoopid

step-by-step explanation:

im eatin up the 44

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18