the length of a rectangle is 8 cm more than twice the width. the perimeter of the rectangle is 34 cm. what is the length of the rectangle

C. n=4 or n=-4

Step-by-step explanation:

10lnl-3=37         original problem

      +3=+3         add 3 to both sides

10lnl=40            solve that portion

10lnl=40    

     10                 divide both sides by 10 to isolate the variable

lnl=4                  since n is an absolute value, it is the distance from zero making the solution 4 or -4.