Home - HomeschoolMath.net IXL math practice
You are here: HomeWorksheets → 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:

  • variables: a..z, A..Z
  • indexed variables, for example: a1
  • digits: 0..9
  • decimal point: .
  • operators: +,-,*,/,^
  • grouping symbols: (,)
  • constants: i, e, pi
  • functions: sin, cos, tan, ln, log, sqrt, etc.
  • equal sign and inequality symbols: =, <, >, <=, >=
  • comma (to separate expressions): ,

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.

See also:

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.

Math Worksheets Menu
1st grade
2nd grade
3rd grade
4th grade
5th grade
6th grade

Addition worksheets
Number Charts
Multiplication worksheets
Division worksheets

Basic operations: addition,
subtraction, multiplication
and division (incl. integers)

Roman numerals
Place value &
scientific notation

  Time (clock)
Measuring units
Classify triangles
Classify quadrilaterals
Area & perimeter of rectangles
Area of triangles & polygons
Coordinate grid, moves, reflections

US Money
Canadian Money
Australian Money
British Money
European Money
South African Money

Fraction worksheets 1
Fraction worksheets 2
Comparing fractions
Equivalent fractions
Prime factorization / factors
Fraction Calculator
  Decimal worksheets
Decimal multiplication
Decimal division

Percent of number
Find percent
or percentage

Order of operations
Square Root

Ratio word problems
Order of operations
Variable expressions
Evaluate expressions
Linear equations

Equation calculator
Equation editor

Free math worksheets and practice - Adapted Mind

Practice makes perfect. Practice math at IXL.com

Free math worksheets and practice - Adapted Mind