Mastering 1-Step Equations with Addition and Subtraction

The video tutorial covers solving one-step equations using addition and subtraction. It explains the concept of equations and expressions, focusing on isolating variables using inverse operations. The tutorial provides examples, such as solving for X in scenarios involving addition and subtraction, and emphasizes the importance of checking solutions. Practice problems are included to reinforce the concepts.

What is the goal of solving an equation?

• To simplify the equation

• To balance both sides of the equation

• To find the value of the variable

• To eliminate the variable

What is the inverse operation of addition?

• Division

• Addition

• Subtraction

• Multiplication

If John has x apples and adds 5 more to have a total of 8 apples, what is the value of x?

• 5

• 3

• 4

• 2

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

• By using a calculator

• By substituting the solution back into the original equation

• By asking a friend

• By simplifying the equation

Maddie has x dollars and spends 90 on a purse, leaving her with 45 dollars. What is the value of x?

• 90

• 45

• 180

• 135

What is the inverse operation of subtraction?

• Subtraction

• Division

• Multiplication

• Addition

Solve for x: x + 2 = 10

• 6

• 7

• 8

• 9

Solve for y: y - 8 = 15

• 20

• 23

• 22

• 21

Solve for a: a + 9 = 2

• -8

• -7

• -9

• -10

What is the importance of the check step in solving equations?

• It ensures the solution is correct

• It helps to simplify the equation

• It balances the equation

• It eliminates the variable