Question

Solve the following system of equations:

2x + 4y - 3z = -7
3x + y + 4z = -12
x + 3y + 4z = 4

Answer 1

help plz

Answer 2

subtract the second from the third to create a new equation with x and y only
that's first to eliminate z
but you need one more equation to have x and y only
so multiply the first by 4
and the third by 3 then do the subtraction one more time
to another new equation
then take those two new equations to solve for x and y

Answer 3

there are various ways of doing this!
the one that is more helpful is the augmented matrix
but there is a lot of steps changing things to get the right answer
so i think that will confuse you

Answer 4

don't wait for an answer go and work what i told you
and see where you stuck

Answer 5

Solve the following system of equations:

2x + 4y - 3z = -7
3x + y + 4z = -12
x + 3y + 4z = 4

(-6, -2, -1)
(6, -2, -1)
(-6, 2, 1)
(6, 2, 1)

Answer 6

i said don't just wait for an answer, do some work