Respuesta :
Answers:
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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Answer:
the answer is: 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
Step-by-step explanation: