Given the system of equations, what is the x-coordinate of the solution? (matrix)
y = 3 -1/2 x
3x + 4y = 1

22
-17/2
-11

Step-by-step explanation:

The given system of equations solved by matrix method is to arrange all coefficients into a matrix, and then making zeros in specific columns and rows, until we get an equation with just one variable.

In matrix arrangement:

Multiplying by 4 the first row and then subtracting with the second row, we have:

From the firs row, we find that:

Therefore, the right answer is -11.

the answer

b. they are parallel and will never intersect.

x/3-10=8

x/3=18

x=48