Question

k

Answer 1

help me direct

Answer 2

Okay

Answer 3

this is what I got http://prntscr.com/1uqfuo

Answer 4

Ok

Answer 5

x=-2 y=-2 and z =-4

Answer 6

Okay but an you show me how to do it Algebraically

Answer 7

(A) -2x+y-2z=10
(B) 3x-2y-2z=6
(C) x+2y+z=-10


Take these two equations

(B) 3x-2y-2z=6
(C) x+2y+z=-10

and add them.
Expect to eliminate the y variable.

Answer 8

Post what you get.

Answer 9

3x2 + y + 2z=16

Answer 10

3x2 --> No because 3x + x = 4x

+ y --> No because -2y + 2y = 0

+ 2z --> No because -2z + z = -z

=16 --> Correct

@LoveIS If you have forgotten how to add algebraic expressions, you need to review that before solving systems of equations.

Answer 11

Can you do this problem step by step, I have lots of them left with all kinds of methods. I want to use this as a refrence

Answer 12

Can you please

Answer 13

I can but I am making up a new system to solve.

Answer 14

Okay can it be similar exact everything just change a number please so I don't get confused

Answer 15

What is the next system of equations you are to solve?

Answer 16

same thing but with matrix

Answer 17

That is a different technique from what we are doing now.

Answer 18

I'm sorry that I can't be of more help. I suggest that you close this thread and re-post your original problem. Someone else will do a better job of helping you. @LoveIS