Writing Two-Step Equations

Front

What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to solve for the variable.

Front

How do you isolate a variable in a two-step equation?

Back

To isolate a variable, perform the inverse operations in the reverse order of how they are applied.

Front

What does the variable represent in an equation?

Back

The variable represents an unknown value that we are trying to solve for.

Front

Write a two-step equation for the scenario: A book costs $15 and you have $50. How much money do you have left after buying the book?

Back

x - 15 = 50

Front

What is the first step to solve the equation 2x + 3 = 11?

Back

Subtract 3 from both sides to get 2x = 8.

Front

If you have the equation 4x - 5 = 11, what is the second step to solve for x?

Back

Add 5 to both sides to get 4x = 16.

Front

In the equation 3x + 12 = 30, what does '3x' represent?

Back

'3x' represents three times the unknown value x.

Front

How can you check if your solution to a two-step equation is correct?

Back

Substitute the solution back into the original equation to see if both sides are equal.

Front

What is the solution to the equation 5x + 10 = 35?

Back

x = 5.

Front

Write a two-step equation for the scenario: You have $100, and you spend $20 on a game. How much do you have left?

Back

x - 20 = 100.