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Part 1: Explain, in complete sentences, which method you would use to solve the following system of equations. (1 point)
Part 2: Explain why you chose that method (1 point)
Part 3: Provide the solution to the system. (2 points)
x – 2y + z = 0
2x – 3y – 4z = –9
x + 2y – 5z = 0
1. I used elimination method
2. I used it cause it's easier than the rest.
3. I got ((97/8,10/3,23/18)
Can anyone doublecheck my solution?
 one year ago
 one year ago
Part 1: Explain, in complete sentences, which method you would use to solve the following system of equations. (1 point) Part 2: Explain why you chose that method (1 point) Part 3: Provide the solution to the system. (2 points) x – 2y + z = 0 2x – 3y – 4z = –9 x + 2y – 5z = 0 1. I used elimination method 2. I used it cause it's easier than the rest. 3. I got ((97/8,10/3,23/18) Can anyone doublecheck my solution?
 one year ago
 one year ago

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waterineyesBest ResponseYou've already chosen the best response.1
Yeah I will also prefer elimination here..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Reason is: The first and third equation consists same x and 2y so that they can be cancelled out by just addition or subtraction..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Let me solve this please wait.
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Add first and third equation you will get: 2x  4z = 0 2x = 4z 1 Now multiply first equation with 3 and second equation by 2: 3x – 6y + 3z = 0 4x – 6y – 8z = –18 Now subtract them: x + 11z = 18 2z + 11z = 18 9z = 18 z = 2
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
I got z = 2 check your solution once again @Loujoelou
 one year ago

LoujoelouBest ResponseYou've already chosen the best response.0
K. I thought my solution was a bit weird.
 one year ago

LoujoelouBest ResponseYou've already chosen the best response.0
K I see how you got z, and I realize x=4 correct?
 one year ago

LoujoelouBest ResponseYou've already chosen the best response.0
@waterineyes Now I got (4,3,2)
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
x = 2z if z = 2 then surely x will be 4..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Yes you are right now..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
May I suggest you something?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
You can verify your answer.. See you got 4, 3 and 2, Just plug in these values in the equation given and check whether they are coming equal.. Like for first: x – 2y + z = 0 4  2(3) + 2 = 0 6  6 = 0 0 = 0 This means your answer is correct.. Now similarly put in second and third you will get 0 in each case.. This is how we verify our answers..
 one year ago

LoujoelouBest ResponseYou've already chosen the best response.0
K :D Tyvm @waterineyes
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Welcome Dear.. \(\huge \checkmark\)
 one year ago
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