How to Find the Inverse of a 3x3 Matrix

SOLVED:(a) Compute the inverse of the coefficient matrix for the system. (b) Use the inverse matrix to solve the system. In cases in which the final answer involves decimals, round to three decimal places. { 5 x-2 y-2 z =15 3 x y =4 x y z =-4.

Inverse matrices and matrix equations

SOLVED:Solve the given systems of equations by using the inverse of the coefficient matrix. Use a calculator to perform the necessary matrix operations and display the results and the check. See Example 5. 2 p q 5 r s=5 p q-3 r-4 s=-1 3 p 6 q-2 r s=8 2 p 2 q 2 r-3 s=2