Question

someone plz help me solve
complete the ordered triple
4a+3b+c=-9
a-3b+2c=27
11a-2b+3c=28
step by step so i can learn how to do on my own i keep getting the wrong answer

Answer 1

subtract twice equation 1 from equation 2 and thrice equation 1 from equation 3. that should eliminate c and you will have two new equations with just a and b. solve for a and b and substitute their values in one of the original equations to get c

Answer 2

your suppose to add them not subtract i thought

Answer 3

no you can manipulate them any way you like. subtraction is simply negative adding.
4-2 is 4+(-2). Think about it this way then
add negative twiceequation 1 from equation 2 and negative thrice equation 1 from equation 3. that should eliminate c and you will have two new equations with just a and b. solve for a and b and substitute their values in one of the original equations to get c

Answer 4

http://www.flickr.com/photos/62007598 @N03/5645382314/

Answer 5

I'm not good with tye , writing more easy for me

Answer 6

it says its a bad link

Answer 7

you can see?

Answer 8

I see very good

Answer 9

it says page not found oops looks like you followed a bad link

Answer 10

let tye

Answer 11

...........4a=3b+c=-9
...........a-3b+2c=27
Add....5a = 3c =18
1st + 3rd
time 2 to the frist equation
8a+6b+2c=-18
time (3)*3rd rquation
33a-6b+9c=84
...............8a+6b+2c=-18
..............33a-6b+9c=84
add...........a+11c=66
time(11) to 5a+3c=18
..............55a+33c=198
time(-3) to 41a +11c=66
...............-123a-33c=-198
................55a+33c=198
...............-123a-33c=-198
add...........-69a=0
......................a=0
sutitution a=0 find
5(0)=3c=18
...........c=6
sutitution c=6 find find b
11(0)-2b+3(6)=28
0 -2b+18=28
...........-2b=28-18
...............b=10/-2
...............b=-5
a=0...., ....5,......c= 6

Answer 12

Add....5a = 3c =18
I tye wrong: 5a+3c=18
I told you I'm not good tye you check I may tye wrong

Answer 13

a=0
b=-5
c=6

Answer 14

...........4a=3b+c=-9
...........a-3b+2c=27
Add....5a +3c =18
1st + 3rd
time 2 to the frist equation
8a+6b+2c=-18
time (3)*3rd rquation
33a-6b+9c=84
...............8a+6b+2c=-18
..............33a-6b+9c=84
add........41a+11c=66
time(11) to 5a+3c=18
..............55a+33c=198
time(-3) to 41a +11c=66
...............-123a-33c=-198
................55a+33c=198
...............-123a-33c=-198
add...........-69a=0
......................a=0
sutitution a=0 find
5(0)=3c=18
...........c=6
sutitution c=6 find find b
11(0)-2b+3(6)=28
0 -2b+18=28
...........-2b=28-18
...............b=10/-2
...............b=-5
a=0...., ..b=-,......c= 6
I check every thing is correct now I have to go now bye

Answer 15

you still here

Answer 16

check again
http://www.flickr.com/photos/62007598 @N03/5645382314/

Answer 17

http://img857.imageshack.us/i/mathk.jpg/