x + 2y + 2z = 0 2x + y + z = 3 x - 3y - z = 1

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x + 2y + 2z = 0
2x + y + z = 3
x - 3y - z = 1

Take 1st and 2nd equations and solve simultaneously to elimintate y and z at the same time and get x.

Then use that value of x in all the equations to get them in terms of y and z only, where you can use simultaneous equations to solve for the remaining variables.

Quote:

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Originally Posted by Unknown008

x + 2y + 2z = 0
2x + y + z = 3
x - 3y - z = 1

Take 1st and 2nd equations and solve simultaneously to elimintate y and z at the same time and get x.

Then use that value of x in all the equations to get them in terms of y and z only, where you can use simultaneous equations to solve for the remaining variables.

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Thanks for rewriting that (I have to spread rep otherwise I would give you a greenie) I was too tired after 8.5 hours straight of work followed by a 3 hour chemistry exam. Haha.

It's okay, I was confused too at first and seeing that the equation was abnormally long... noticed the spaces ;)