Title: The Basics: Algebraic Operations
Course: Open MAT107 Contextualized > Section: Algebraic Operations

 | The Basics:   Algebraic Operations

Energy fields of study use mathematical formulas.  A solar PV system installer will need to use Ohm's Law to calculate voltage and oil industry technicians may need to use Boyle's Law to describe the relationship between the absolute pressure and the volume of a gas as well as many other geometric formulas for the design of equipment.

Being able to solve equations and expressions are the basis of solving formulas.  An algebraic expression contains at least one variable.

An expression is a mathematical statement without an equal sign.  Example:

While, an equation links two expressions with an equal sign.  Example:

Watch these helpful Khan Academy videos for more information:

Expression and Equation Basics:

What is a variable?

Example: evaluating an expression

Example: evaluate a formula using substitution

Laws of Exponents:

Exponent Rules Part 1

Exponent Rules Part 2

Negative and Positive Exponents

Now move on to the energy technology video demonstrations. When you are ready, take the practice quiz to show what you know. If you think you need more practice, ask your instructor if the optional practice assignments would help you.