Pat's age today, plus Pat's age 5 years ago, equals 21. What is Pat's age today?
2 Answers
May 8, 2018
13 years old
Explanation:
Pat's age today is a variable since we don't know its value. Let's say that's
Pat's age 5 years ago would be
Add those together and you have 21, so...
Mathematical form:
Let's simplify!
Checking your work:
May 8, 2018
Pat is 13 years old
Explanation:
Let's write the sentence in mathematical terms, using