Equation Word Problems (2-step)

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 an equation?

Back

To isolate a variable, perform inverse operations to both sides of the equation until the variable is alone on one side.

Front

What does it mean to 'solve' an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is the first step in solving a two-step equation?

Back

The first step is usually to eliminate any constant added or subtracted from the variable.

Front

What is the second step in solving a two-step equation?

Back

The second step is to divide or multiply to isolate the variable.

Front

Write a two-step equation for the problem: Nancy gave away 21 pieces of gum and has 5 left. How many did she start with?

Back

g - 21 = 5

Front

If 5 times a number increased by 30 equals 15, what is the equation?

Back

5n + 30 = 15

Front

How do you check if your solution to an equation is correct?

Back

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

Front

What is the equation for Terry's car repair bill if he was charged $50 per hour plus $150 for parts?

Back

50h + 150 = 375

Front

How can you represent Erica's savings plan as an equation?

Back

14 + 5w = 64, where w is the number of weeks.