Explanation:
LET WIDTH= X
LENGTH= X+5
PERIMETER= 2(L+B)= 170
2(X+X+5)= 170
2X+5= 85
2X= 80
X= 40
WIDTH= 40
LENGTH= 45
The length of a rectangle is five more than the width. The perimeter is 170. What is the length and width? Write the equation and solve.