Saturday

April 19, 2014

April 19, 2014

Posted by **anonymous** on Saturday, October 11, 2008 at 2:38pm.

6x-6y-4z=-10

-5z+4y-z=-12

2x+3y-2z=9

- math -
**drwls**, Saturday, October 11, 2008 at 6:00pmMultiply the last equation (both sides) by 2. That gives you

4x + 6y - 4z = 18

Add that to

6x - 6y - 4z = -10

That gives you

10x -8z = 8

So far, we have eliminated the variable y.

Use similar tricks to get rid of x or z.

I believe your second equation is typed incorrectly. Did you mean

-5x +4y -z = -12?

**Related Questions**

Algebra - Find all solutions to the following system of equations: x + 3y + 2z...

math - solve by elimination 5x+3y+5z=-16 2x+5y-z=-26 x-4y+2z=10

Algebra 2 - Before I go on and give you the problenms let me explain. i am not ...

Algebra 2 - Before I go on and give you the problenms let me explain. i am not ...

Calc. - I am so confused with this last part of the unit! What in the world is ...

Math Homework - Hello! I need help with these math questions, thanks! :) 1.) ...

Algebra - I need help I don't know how to solve this system Solve the following ...

Algebra 2 - Solve this system by substitution: 2x-3y=12 x-4y=6 Slve this system ...

Math - Use the echelon method to solve the system: x + 3y + 4z = 14 2x – 3y +2z...

Algebra, help needed - I need help I don't know how to solve this system Solve ...