Solving Equations: Word Problems

Front

What is a variable in an equation?

Back

A symbol, often a letter, that represents an unknown value in an equation.

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.

Front

What is a word problem?

Back

A mathematical problem presented in the form of a narrative or real-life scenario.

Front

How do you set up an equation from a word problem?

Back

Identify the unknown, define a variable, and translate the words into a mathematical expression.

Front

What is the first step in solving a word problem?

Back

Read the problem carefully and identify what is being asked.

Front

If a problem states 'Troy and two of his friends earned $129', how do you find out how much each friend earned?

Back

Subtract any expenses from the total earnings and then divide by the number of friends.

Front

What is the equation to find the cost of each soda if Vonnie spent $13 on chips and sodas?

Back

Let x be the cost of each soda: 3 + 2x = 13.

Front

How do you find the total number of items if you know the remaining amount after losing some?

Back

If you lost 1/3 of the items and have 24 left, set up the equation: (2/3)x = 24.

Front

What is the formula to find the cost per item?

Back

Cost per item = Total cost / Number of items.

Front

How do you determine the starting amount if you know the final amount after an increase?

Back

Subtract the increase from the final amount.