 Hello friends welcome to the session. I am Malka and we are going to discuss matrices find x if y equal to 3 2 1 4 and 2 x plus y equal to matrix 1 0 minus 3 2 now let's start with the solution We are given y equal to 3 2 1 4 matrix, which is our first equation and 2 x plus y equal to 1 0 minus 3 2 This is our second equation now on substituting the value of y in equation second we get 2 x plus matrix 3 2 1 4 equal to matrix 1 0 minus 3 2 or 2 x equal to 1 0 minus 3 2 matrix minus 3 2 1 4 matrix this is equal to 1 0 minus 3 2 matrix plus matrix minus 3 minus 2 minus 1 minus 4 this can be written as 1 minus 3 0 minus 2 minus 3 minus 1 2 minus 4 This is equal to minus 2 minus 2 minus 4 minus 2 This implies 2 x equal to minus 2 minus 2 minus 4 minus 2 This implies x equal to 1 by 2 of matrix minus 2 minus 2 minus 4 minus 2 This is again equal to this implies x equal to minus 1 minus 1 minus 2 minus 1 So this is a required answer Hope you understood the solution and enjoyed the session. Goodbye and take care