Answer:
The value of w cannot be a negative number.
Substitution is used to replace the variable l with a value of 20.
The subtraction property of equality is used to isolate the term with the variable w.
Explanation:
C) The value of w cannot be a negative number.
D) Substitution is used to replace the variable l with a value of 20.
E) The subtraction property of equality is used to isolate the term with the variable w.
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