Solving One-Step Addition and Subtraction Equations

The video tutorial introduces students to algebra, transitioning from pre-algebra concepts. It covers key vocabulary such as variables, coefficients, and constants, and explains the concept of equations as balanced mathematical sentences. The tutorial demonstrates how to solve equations by isolating variables, using addition, subtraction, multiplication, and division. Several example problems are solved step-by-step to illustrate these methods. Students are encouraged to practice additional problems to reinforce their understanding.

What is the main focus of today's lesson?

• Pre-algebra concepts

• Solving equations

• Geometry basics

• Calculus introduction

Which term represents an unknown value in an equation?

• Variable

• Constant

• Coefficient

• Exponent

What is a coefficient?

• A number multiplied by a variable

• A symbol representing equality

• A letter representing an unknown value

• A number added to a variable

What is a constant in an equation?

• A symbol representing equality

• A number added to a variable

• A number multiplied by a variable

• A letter representing an unknown value

What does an equation represent?

• A mathematical sentence balanced on both sides of the equal sign

• A mathematical sentence with an unknown value

• A number multiplied by a variable

• A number added to a variable

What is the goal when solving an equation?

• To balance the equation

• To add more variables

• To multiply the constants

• To isolate the variable

What must you do to both sides of an equation to keep it balanced?

• Divide by the same number

• Add the same number

• Subtract different numbers

• Multiply by different numbers

In the equation x - 8 = 2, what is the first step to isolate x?

• Divide both sides by 8

• Multiply both sides by 8

• Add 8 to both sides

• Subtract 8 from both sides

In the equation y + 3 = 7, what is the value of y?

• 4

• 7

• 10

• 3

In the equation 6 + z = 4, what is the value of z?

• 4

• -2

• 2

• 6