Lesson: Using Systems of Equations to Solve Real-Life Problems

In this lesson, we will learn how to translate a real-life problem into a system of equations and to find its solution(s).

Question Video: Solving Clues with the Four Operations to Find a Pair of Numbers

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Q1:

A man’s age is 4 times his son’s age. In five years, the sum of their ages will be 105. How old are they now?

Q2:

Two cousins were born 8 years apart. How old will the elder be when the sum of their ages is equal to 20 years?

Q3:

I am thinking of two numbers. Use the clues to determine what the numbers are.

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