Mr. Cornely
Mr. Cornely
Home
Homework
Blizzard Bags
For Parents
Tutorials and notes
Ch.1 Equations
Ch. 2 Transformations
Ch.3 Angles
chapter 4 Linear Equations
Ch. 5 - Systems of equations
Chapter 6 (functions)
Ch. 7 pythagorean theorem
Extra Help
Gallery
Grade 7 Archives
Text Book
Chapter Tutorials
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Class Notes
Chapter 1 (Integers)
Chapter 2 (Rational Numbers)
Chapter 3 (Expressions & Equations)
Chapter 4 (Inequalities)
Chapter 5 (Rates, Ratios, and Proportions)
Chapter 6 (percents)
Chapter 7 (Angles and Scale Drawings
Chapter 8 (Circles)
Chapter 9 (Surface Area and Volume)
Chapter 10 (Probability and Statistics)
Home
Homework
Blizzard Bags
For Parents
Tutorials and notes
Ch.1 Equations
Ch. 2 Transformations
Ch.3 Angles
chapter 4 Linear Equations
Ch. 5 - Systems of equations
Chapter 6 (functions)
Ch. 7 pythagorean theorem
Extra Help
Gallery
Grade 7 Archives
Text Book
Chapter Tutorials
>
Class Notes
Chapter 1 (Integers)
Chapter 2 (Rational Numbers)
Chapter 3 (Expressions & Equations)
Chapter 4 (Inequalities)
Chapter 5 (Rates, Ratios, and Proportions)
Chapter 6 (percents)
Chapter 7 (Angles and Scale Drawings
Chapter 8 (Circles)
Chapter 9 (Surface Area and Volume)
Chapter 10 (Probability and Statistics)
How to evaluate an expression with variables
: Learn how to evaluate an expression with variables using a technique called substitution (or "plugging in").
How to evaluate expressions with two variables
: We've done a few examples together where we were faced with 1 variable. Why not try one that has 2 variables?
How to write expressions with variables
: Learn how to write simple algebraic expressions.
Combining like terms introduction
: In simple addition we learned to add all the numbers together to get a sum. In algebra, numbers are sometimes attached to variables and we need to make sure that the variables are alike before we add the numbers.
How to simplify an expression by combining like terms and the distributive property
: We've learned about order of operations and combining like terms. Let's layer the distributive property on top of this.
Equivalent expressions with distribution and negative numbers
: Learn how to identify equivalent expressions using your knowledge of the distributive property and negative numbers.
How to factor a linear binomial by taking out a common factor (example)
: Sal shows how to factor the expression 4x+18 into the expression 2(2x+9).
Example of solving a one-step equation
: Learn how to solve this equation: a + 5 = 54
Solving two-step equations
: Here's how we solve a two step equation. It begins with the concept of equality: what we do to one side of the equation must be done to the other.
Solving a more complicated equation
: This example demonstrates how we solve an equation expressed such: ax + b = c. It's a little more complicated than previous examples, but you can do it!
Example: two-step equation with numerator x
: Solve the equation by isolating the term with numerator x.
How to solve two-step equations with decimals and fractions
: Learn how to solve equations that involve decimals and fractions. The equations shown in this video are called "two-step" equations because they each take two steps to solve.