# Solve 3 by 3 System Using Inverse Matrix - Calculators

This calculator solves a 3 by 3 systems of equations using the method of the inverse matrix.
where A is a 3 by 3 matrix whose elements are the coefficients of the unknown x, y and z in the system of equations, X is the 3 by 1 matrix whose elements are the unknown x, y and z and K is the 3 by 1 matrix whose elements are the constant terms on the right side of the equations. The solution is given by ^{-1}K
^{-1} is the inverse matrix of matrix A.
## Use the Calculator to Solve SystemEnter the coefficients in the cells of the 3 by 3 matrix.(decimal, fraction of the form a/b and whole numbers as shown in the example below, are accepted), enter also the constant coefficients of the system on the right side, then press "Solve".## More References and linksSolve Systems of EquationsThe Inverse of a Square Matrix Cramer's Rule to Solve Systems of Equations Maths Calculators and Solvers. |