Cramer's rule

Cramer's rule is used to solve for the varisbles in a system of linear equations. It starts by finding the determinate of a three count set. Once the determinate is found, you replace the collumn of whatever variable you are trying to find with the answers of each equation.  You then find the determinate of the new equation. If one was solving for x, they would put the outcome of Dx/x, or the determinate of x over the determinate of the original set. To solve for all,the variables, you just repeat this process for y, z, and so on. You write the answer in an ordered pair, such as (4,5,3).