# Fundamental Mathematics/Matrix/System of linear equations

## System of linear equationsEdit

System of linear equation of 2 variables has general form

Which can be written as matrix

### To solve for y valueEdit

Divide 1st equation by A_{11} and 2nd equation by A_{21}

Subtract 2 equation above

### To solve for x valueEdit

Divide 1st equation by A_{12} and 2nd equation by A_{22}

Subtract 2 equation above