Question

Solve the following system of equations
2x - 3y + z = -1
2x - 2y - 2z = -8
x + 5y - 3z = 2

Answer 1

Would it be (-1,2,8)?

Answer 2

Did you actually solve it to get that or are you just guessing?

Answer 3

guessing lol. I'm doing my exams and it's timed and I'm getting low on time here

Answer 4

No, you can't guess. Just use wolfram alpha

Answer 5

Guessing would work, but need to make some smart guess to though.

Answer 6

If he has an exam, he has to understand and wolfram alpha doesn't help too much.

Answer 7

x = 1
y = 2
z = 3

Answer 8

You can use wolfram alpha to understand. You just have to know how to use it

Answer 9

Wolfram would help you see if you are doing it right or not. It is a good tool to assist you while you are learning system of equation concepts.

Answer 10

2x = 3y - z - 1
2x = 2y + 2z - 8
2x = -10y + 6z + 4 (multiply by 2 for the whole eqn)

So,
3y - z - 1 = 2y + 2z - 8 = -10y + 6z + 4

go on doing the simultaneos eqn by any method u like and i guess u'll get the answer right. Pls do tell me if there's a btr method, I'm juz finished Form 5 (or O lvl for other countries) and thts what i guessed i've learned to solve this kind of Q.