Write a matrix that represents the system of equations below.
7x – 3y = 21
5x – y = 85
alkdsjfl;ja;lksdjf;kal;sdjfkljl;sjd;asj;fas;dfj;asdkflja;ldsjfajsd;kfjla;kdsjfp
To write a matrix that represents the system of equations, we need to arrange the coefficients of the variables and the constants into a table format.
The system of equations is:
7x – 3y = 21
5x – y = 85
To represent them in matrix form, we need to separate the variables and the constants.
The matrix representation will have three columns: one for the x-coefficients, one for the y-coefficients, and one for the constants. Each row will represent one equation.
So, the matrix representation is:
| 7 -3 21 |
| 5 -1 85 |
In this matrix, the first row represents the equation 7x – 3y = 21, where the x-coefficient is 7, the y-coefficient is -3, and the constant term is 21. The second row represents the equation 5x – y = 85, with the respective coefficients and constant term.
(7 -3)(x) = (21)
(5 -1)(y) (85)
formatting not good here.