# Basic Algebra - Learning the Basics, Algebraic Expression, Addition and Subtraction in Algebra

May 29th, 2015
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In Arithmetic all numbers are expressed in terms of the digits, all of which have definitive values. In Algebra, these digits are used with some symbols, which usually do not have any single values.

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BASIC ALGEBRASOLVING LINEAR EQUATIONLesson ObjectiveThis lesson shows you the basics that you need to know when solving linear equations.Sponsored LinksAbout This LessonIf you are asked to find the value of x in the equation: x + 2 = 3 You can immediately solve the equation by letting x = 1. This is because both sides of the equation must be equal to 3 for this equation to remain true. Now, this lesson shows the basics that you need to know when solving linear equations. These basics are very useful when it comes to solving more complicated equations. Study TipsTip #1For linear equations, the variable (or unknown) that you need to find has only one value (i.e. one correct answer)Tip #2An equation has 2 sides. One is called Left Hand Side (LHS) and another is called Right Hand Side (RHS).For example, consider the equation: x +2 = 3The LHS is x+2 and the RHS is 3.Tip #3Realize the importance of the equal sign (=) in an equation. This sign means that both sides of the equation must balance up each other.So, whatever is added in the LHS must be equally be added in the RHS Tip #4The math video shows some shortcuts that can be used for solving linear equations quickly. You may want to learn these shortcuts. Now, watch the following math video on to know more. EXPONENTS EXPONENTS LAWLesson Object

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