Writing Equations

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables and constants.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

Write an equation for the situation: The total number of piano lessons (p) minus the 3 completed lessons equals 15.

Back

p - 3 = 15

Front

What is the first step in solving the equation p - 3 = 15?

Back

Add 3 to both sides of the equation.

Front

What does the equation 74.80 = 8x represent?

Back

It represents the total amount earned (74.80) being equal to the hourly rate (8) multiplied by the number of hours worked (x).

Front

How do you isolate the variable x in the equation 74.80 = 8x?

Back

Divide both sides by 8.

Front

Write an equation for the situation: Tammy made a deposit of d dollars into her bank account. Her old balance was $100, and her new balance is $280.

Back

100 + d = 280

Front

What is the purpose of writing equations in word problems?

Back

Writing equations helps to translate real-world situations into mathematical expressions that can be solved.

Front

What is the equation for the phrase: The product of four and a number is twelve?

Back

4x = 12

Front

How do you solve the equation 4x = 12?

Back

Divide both sides by 4.