The calculator solves systems of linear equations with two and three variables. • System solver 2x2 Solves systems of two linear equations in two variables by substitution or using using Cramer's rule. • System solver 3x3 Solves systems of three linear equations in three variables using Cramer's Rule. To solve 3x3 systems of equations, you should select a landscape orientation. Features: Shows step-by-step solution. Supports integer, fractional and decimal coefficients. Shows results as deci