Math Calculators, Lessons and Formulas
It is time to solve your math problem
This calculator solves system of four equations with four unknowns
You can enter integers (10), decimal numbers(10.12) and fractions(10/3).
Important: The form will NOT let you enter wrong characters (like *, (, ), x, p,...)
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Welcome to MathPortal. This web site owner is mathematician Miloš Petrović.
I designed this web site and wrote all the lessons, formulas and calculators.
If you want to contact me, probably have some question write me using the contact form or email me on