Variables

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Understanding Algebraic Variables

In algebra, variables are placeholder letters (capitalized and lowercase) that represent the unknown, or what you're solving for. This video shows you what variables can look like and what they mean. Understanding [more…]

How to Add and Subtract Variables

Adding and subtracting variables operate under the same rule, even though they have different operations: When adding or subtracting terms that have exactly [more…]

How to Multiply Variables

When variables are the same, multiplying them together compresses them into a single factor (variable). But you still can’t combine different variables. When multiplying variables, multiply the coefficients [more…]

How to Divide Variables

Dividing variables is fairly straightforward. Each variable is considered separately. The number coefficients are reduced the same as in simple fractions. When dividing variables, write the problem as [more…]