Find the solution of the following simultaneous equations by the Cramer's method 2x+y-3z=-4
4x-2y+z=9
3x+5y-2z=5​

9514 1404 393

  (x, y, z) = (2, 1, 3)

Step-by-step explanation:

Cramer's rule says you can find the solution by computing the determinants of the matrices obtained by replacing the corresponding variable coefficients with the constant vector.

The attached shows the resulting matrices for x, y, z and the unmodified coefficient matrix (at far right). The determinants of each are listed below, and the result of dividing the determinant for each variable by the determinant of the coefficient matrix is shown below that. In other words, ...

The other variable values are computed similarly.

The solution by Cramer's rule is (x, y, z) = (2, 1, 3).

answer: a

step-by-step explanation:

if xy ~ yz therefore xy would be the same length as yz

step-by-step explanation:

10.50 + taxes which added up to 11.50