Me which is the correct coefficient matrix for this system? 3x - 4y = 12 x + 6y = 10

As per the matrix theory the given system of equations can be written as:

....................(Equation 1)

Where, A is the Coefficient Matrix (always a square matrix),

X is the variables' matrix (always a column matrix), and

B is the Constant Matrix (again always a column Matrix).

Since our's is a two system equation in two unknowns, we will have the coefficient matrix as a 2x2 square matrix and the other two matrices will be 2x1 column matrices.

Thus, the given system in terms of matrices will be:

Comparing the above equation with (Equation 1) we can clearly see that the correct coefficient matrix of the given system is:

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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step-by-step explanation: