Algebra is the branch of mathematics that involves the use of variables to form expressions. It involves variables like x, y, and operations such as addition, subtraction, multiplication, and division. Algebra is the foundation of all future topics, and is essential to understand and solve problems.
Resources:
MathDrills.com KhanAcademy.org Mathplanet.com WhenMathHappens.com - Variables: Variables are unknown values used in mathematical equations. Usually in a problem with a variable you have to substitude that variable with a given numerical value. In some other problems you need to find the value of the variable. Example: x + 4 = 10 -> x = 6 - Mathematical equations: Mathematical equations are two mathematical statements separated by an equal sign that have the same value. - Inequalities: Inequalities are mathematical equations which do not use an euqual sign but instead use a less/more than or less/more than or equal to sign - Exponents: Exponents are when you multiply the same number by the amount of times listed as the exponent. Example: 4^2 = 4*4 = 16