The solution to a system of two linear equation is x = 3 weeks; y = 9 feet

what are the steps?

1 answer

To find the solution to a system of two linear equations, you can follow these steps:

1. Write down the given equations in standard form:
Equation 1: ax + by = c
Equation 2: dx + ey = f

2. Set up a 2x2 matrix with the coefficients of x, y, and the constants:
[ a b | c ]
[ d e | f ]

3. Use Gaussian elimination or any other method to row-reduce the matrix into row-echelon form.

4. Once you have the row-echelon form, read the values of x and y from the last column of the matrix. These values will be the solutions to the system of equations.

In this case, since the given solution is x = 3 weeks and y = 9 feet, you can reverse engineer the steps above to find the original equations and coefficients.