Register

A rectangle has a side length 2x+9 and side width x. If the perimeter is 36 cm, what is the value of x?

A rectangle has a side length 2x+9 and side width x. If the perimeter is 36 cm, what is the value of x?
asked 57.3k views
4 votes
a rectangle has a side length 2x+9 and side width x. If the perimeter is 36 cm, what is the value of x?

asked
User Bastien Jansen
by
8.5k points

1 Answer

4 votes
2(2x + 9) + 2(x) = 36

4x + 18 + 2x = 36

Combine like terms.

6x + 18 = 36

Subtract 18 from both sides.

6x = 18

Divide 6 on both sides.

x = 3

Hope this helps!
answered
User Tomek Cejner
by
8.2k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.

Categories

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Link Copied!