SOLUTION: I'm asking this question once again but I never really received an answer. Thank you.
Cesar is 20 years old. Marissa is 14 years old. How many years ago was Cesar's age 3 times
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Linear-equations
-> SOLUTION: I'm asking this question once again but I never really received an answer. Thank you.
Cesar is 20 years old. Marissa is 14 years old. How many years ago was Cesar's age 3 times
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Question 1175065: I'm asking this question once again but I never really received an answer. Thank you.
Cesar is 20 years old. Marissa is 14 years old. How many years ago was Cesar's age 3 times Marissa's age?
Let x be "how many years ago . . . "
Then you have this equation
20-x = 3*(14-x).
Simplify and solve
20 - x = 42 - 3x
3x - x = 42 - 20
2x = 22
x = 22/2 = 11.
ANSWER. 11 years ago.
CHECK. 11 years ago they were 20-11 = 9 years old (Cesar) and 14-11 = 3 years old (Marissa).
9/3 = 3. ! Correct !
