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The expression for perimeter of a rectangle
with a length of (x + 7) and a width of (2x)

User Dusty
by
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1 Answer

3 votes

Answer:

P = 6x + 14

Explanation:

P = 2l + 2w

where P is perimeter, l is length, and w is width

l = x + 7

w = 2x

So P = 2(x+7) + 2(2x)

Distribute the 2 to the x and 7.

P = 2*x + 2*7 + 2*2x

Multiply each term out

P = 2x + 14 + 4x

Group the xs

P = 2x + 4x + 14

Combine like terms

P = 6x + 14

User ItalyPaleAle
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