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With linear-equations.com you can solve any system of linear equations easily. Simple pose your problem as a matrix of coefficients, enter the numbers and let the tool solve it for you!
Linear Equations SolverSolve any system of linear equations easily
Sudolver is a mobile-first web application that let's you take a picture of any sudoku with your phone's camera and solving it in mere seconds.
SudolverSolve any sudoku with the camera of your phone in seconds