51. The perimeter of a rectangle is P units and the width is w units. The length of the rectangle is x units longer than the width. Which of the following equations expresses x in terms of P and w ?

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation

"The length is x units longer than the width", so the length is x+w,

2(x+w+w) = P;

x = P /2 - 2w, choose B