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If you were to use the elimination method to solve the following system, choose the new system of equations that would result after the variable y is eliminated in the first and second equations, then the second and third equations.
3x – y + 3z = 1
4x + y – 6z = 3
4x – 2y + 3z = –3
7x – 3z = 4
12x – 9z = 3
7x – 3z = 4
4x – 6z = 3
3x + 3z = 1
12x – 9z = 3
3x + 3z = 1
4x – 6z = 3
 one year ago
 one year ago
If you were to use the elimination method to solve the following system, choose the new system of equations that would result after the variable y is eliminated in the first and second equations, then the second and third equations. 3x – y + 3z = 1 4x + y – 6z = 3 4x – 2y + 3z = –3 7x – 3z = 4 12x – 9z = 3 7x – 3z = 4 4x – 6z = 3 3x + 3z = 1 12x – 9z = 3 3x + 3z = 1 4x – 6z = 3
 one year ago
 one year ago

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ParthKohliBest ResponseYou've already chosen the best response.1
I prefer a question at a time. I'd help you with the first.
 one year ago

LoujoelouBest ResponseYou've already chosen the best response.1
Lol it is a question, 9ut the last 8 sets are choices.
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.1
Start by adding the top two equations.
 one year ago

waterineyesBest ResponseYou've already chosen the best response.0
What do you get?? @Loujoelou
 one year ago

LoujoelouBest ResponseYou've already chosen the best response.1
I know it's either C/D, cause 3x+3z=1 is what you get when you eliminate y from 1st/2nd equation.
 one year ago

LoujoelouBest ResponseYou've already chosen the best response.1
nvm other way around. It's A/B
 one year ago

LoujoelouBest ResponseYou've already chosen the best response.1
Cause you get 7x3z=4 not what I said earlier.
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.1
Now, you multiply the second equation by 2 and then add equation 1 and 2.
 one year ago

waterineyesBest ResponseYou've already chosen the best response.0
Now multiply second equation by 2 and then add second and third equation and let us see what you get.
 one year ago

LoujoelouBest ResponseYou've already chosen the best response.1
K I get it now :) It's A cause you get 12x9z=3. Was just a little confused about it.
 one year ago

LoujoelouBest ResponseYou've already chosen the best response.1
tyvm @waterineyes @ParthKohli I understand it perfectly now :) At least doing this by elimination method I mean.
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.1
You got the thing successfully. Congratulations, Lou!
 one year ago

waterineyesBest ResponseYou've already chosen the best response.0
You are doing this by elimination only @Loujoelou
 one year ago

LoujoelouBest ResponseYou've already chosen the best response.1
Lol thx @ParthKohli and yes for this problem I had to @waterineyes
 one year ago
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