How do you solve the following system?: #-x -2y =-1, 6x -y = -4#
1 Answer
Jan 18, 2016
Explanation:
By Cramer's rule:
Make a matrix with the coefficient of each columns, in this case
Take the determinant of this
Now replace the first row with the results row
Now take this determinant
The ratio of these determinants is the solution for
Replace the
Take this determinant
Like before the ratio is the answer for