Question

The length of a rectangle is 3 inches less than twice the width. If the perimeter of the rectangle is 18 inches, find the width of the rectangle​

Answer 1

y = 4. So this is your width.

Explanation:

Use the distributive property to do 2(2y-3) = 2*2y-2*3 = 4y-6. So we have

4y-6+2y = 18. Combine like terms 4y and 2y to get 6y.

6y-6 = 18. Add 6 to both sides to solve for 6y

6y = 24. Divide by 6 to solve for y

y = 4. So this is your width.

length = x

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y | | width = y

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x