Answer:
x = 3
Step-by-step explanation:
Perimeter of the rectangle = 2(l + b)
where l is the length of the rectangle and
b is the breadth of the rectangle.
Here, the perimeter is given to be 18 meters.
And l = 2x m and b = x m
⇒ 18 = 2(2x + x) = 2(3x) = 6x
⇒ x = 3
∴ The value of x is 3 m.