Find the Perimeter rectangle (3w)(x)

Math
l=3ww=x
The perimeter of a rectangle is equal to the sum of all sides of the rectangle.
length+length+width+width=2⋅(length)+2⋅(width)
Substitute the values of the length l=3 and width w=x into the formula for the perimeter of a rectangle.
2⋅3+2⋅x
Multiply 2 by 3.
6+2x w
Find the Perimeter rectangle (3w)(x)

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