The length of the rectangle is R-cm, and its width is y-cm. The length was reduced by 3 cm

The length of the rectangle is R-cm, and its width is y-cm. The length was reduced by 3 cm, and the width was increased 3 times. What is the area of the rectangle? Make a literal expression and find the value of the expression R = 15cm, and Y = 14cm?

Since the length was reduced by 3 cm, it became equal to:

R – 3.

Since the width has been increased 3 times, its new value is:

3 * Y.

By definition, the area of a rectangle is equal to its length times its width:

3Y * (R – 3).

Substitute the given values into the resulting formula:

3 * 14 * (15 – 3) = 3 * 14 * 12 = 504 cm ^ 2.

Answer: the required area of the wound is 504 cm ^ 2.