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Maria's Math news - a FREE math newsletter for parents and teachers
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Various worksheets on TONS of math topics you can generate for free!
Basic operations worksheet generator is updated! Make worksheets for whole numbers or integers - all four operations, including add & subtract or multiply & divide - horizontal or vertical - add a border and/or extra workspace, use a variable, and more.
Advice, reviews, and resources to help you choose a math curriculum!
Online math games, tutorials, and activities
Games you can play online, interactive tutorials, fun math websites and more. Arranged by topic/level for ease of use.
Learn how to TEACH concepts or about general concerns in math education.
In-depth reviews of math products
Math help & tutoring
A list of free message boards, math help websites, and online tutoring services.
Fun and games
I have two games on my site, plus links to many.
Game: Choose Math Operation
Word guess game (easy hangman)
Word guess game (difficult)
You are here: Home → Worksheets → Equation calculator
Free equation calculator
This is an online equation solver that can solve not only equations, but almost any algebra problem you enter—solve equations, simplify expressions, factor expressions, solve inequalities, solve matrices, solve systems of equations, graph equations, and much more.
How to solve problems with this calculator
First, you need to select the appropriate operation tab (i.e. Equation) and sub-tab (i.e. Solve). Once you are on the correct page, you can start entering your algebra problem.
You will notice that as soon as you begin typing, below the input line the expression will be shown in the 'book format'. This makes it easier to input your problem. Expressions are entered using common algebraic notation. Here is a brief summary of allowed characters and character combinations:
The syntax allows implied multiplication (i.e. ab is interpreted as a*b). The exception to this rule is function and constant entry (i.e. sin is a function and not the product s*i*n). Also, an integer following a variable will be interpreted as an index (i.e. 'a1' will have the meaning of a1 rather than a*1).
Also note that if you want the cursor to 'stay' in a denominator or exponent, you will need to use the parentheses. For example, to keep variable c in the denominator, you will need to enter a/(b+c) .
Once you have entered the problem, simply click on the Solution button (depending on the operation, this button may be called 'Simplify', 'Solve' or something else). This will display the problem solution.
Additional help on using the math solver can be obtained by clicking on question marks that can be found by the input fields.
Algebra resources - a list of free algebra tutorial websites
Algebra curriculum - my recommendations for algebra 1 curriculum & books
Equation editor - a handy tool to create images of equations that you can copy and paste to your materials.