What is the value of x, y, and z in the solution of the system of linear equations?
{x + y + z = 4 2x - 2y - z = 3 - 4x + y + 2z = -3

x=2, y=-1, z=3

Step-by-step explanation:

The system shown in the attached picture can be solved using any method you wish

I think that the best way to go is by using the subtraction method,

First multiply the equation x+y+z=4 by 2, then sum it to the second equation.

This gives another equation: 4x+z=11.

If we subtract the first eq. with the third, we have another eq. -5x+z=-7.

Lest sum the 2 new founded equations, to obtain the following result: -9x=-18

thus, we obtain x=2

Next lets go backwards in the prior eq -5x+z=-7, with x=2, we obtain that z=3

Now in the first equation (x+y+z=4) we can substitute x=2, z=3 to obtain y value.

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.

my answer is$ 12

step-by-step explanation:

because 15 -2=12