Question

Determine the value of k for which the system has no solutions.

x+y+3z=3
x+2y-2z=-1
6x+13y+kz=-9

Answer 1

do you know how to solve simultaneous equations?

Answer 2

It's using the same concept but with three equations.

Answer 3

do i just solve for x, y, z?

Answer 4

yes u are right, but first focus on the first two equations.

Answer 5

multiply the first eq. by -2 tgo cancel the y

Answer 6

yes and then rearrange in terms of x or z, it's your choice.

Answer 7

huh?

Answer 8

I sent u a link in msg, go check it out.

Answer 9

It should be really easy to follow.