Question

solve system of equations:
2x-3y+z=0
x+y-2z=5
-2x+2y+4z=2
Please help& ill give you a medal :)

Answer 1

1. Add equations 1 and 3
That will eliminate x

Answer 2

2. Multiply equation 2 by 2
3. Add that equation to equation 3.
That will eliminate x again.

Answer 3

Now you have two equations with only y and z. Solve that system.

Answer 4

ok

Answer 5

wait but how do you eliminate the 2nd x if the other two have already been eliminated?

Answer 6

By doing what I said.

Answer 7

idk what i did but i ended up eliminating z

Answer 8

Post what you did.

Answer 9

i cant i cant find the attach button

Answer 10

i saw it before but it just disappeared :/

Answer 11

It's right below this box.

Answer 12

i know but it doesnt show me it

Answer 13

ok

Answer 14

Find z using an equation that contains only y and z

Answer 15

ok

Answer 16

thanks

Answer 17

yw