Shana wants to use all 62 feet of the fencing she has to make a rectangular run for her dog. She decides to make the length of the run 20 feet. She writes and solves the equation 2 l plus 2 w equals 62 to find the width of the run. Which statements are true of the solution? Check all that apply. 1. The value of w is 10 feet.
2. The value of w can be zero.
3. The value of w cannot be a negative number.
4. Substitution is used to replace the variable l with a value of 20.
5. The subtraction property of equality is used to isolate the term with the variable w.