## A-Plus Notes for Beginning Algebra: Pre-Algebra and Algebra 1 by Rong Yang

The A-Plus Notes for Beginning Algebra: Pre-Algebra and Algebra 1 by Rong Yang includes topics on Algebra such as Real Numbers, Decimals, Number Theory, Fractions, Percents, Equations, Functions & Graphs, Factoring, Inequalties & Absolute Value, Systems of Equations, Systems of Inequalities, Radicals, Quadratic Equations, Quadratic Functions, Rational Expressions and Statistics & Probability along with standardized […]

## Algebra Survival Guide by Josh Rappaport

The Algebra Survival Guide comes with an Algebra Wilderness “Bored Game” that gives children a fun way to practice their lessons and also with a tear-out Emergency Fact Sheet poster with all of algebra’s secret rules and formulas at your fingertips. The book has been written by Josh Rappaport who has been a winner of […]

## How are expressions formed?

We know very well what a variable is. We use letters x, y, l, m, … etc. to denote variables. A variable can take various values. Its value is not fixed. On the other hand a constant has a fixed value. Examples of constant are: 4, 100, -17, etc. We combine variables and constants to […]