Monday

July 28, 2014

July 28, 2014

Posted by **Cece** on Saturday, September 14, 2013 at 2:28pm.

solve the following system of operations using matrices (row operations)

{5x + y + z + w = -5}

{x - 2y + 2z -3w = -4}

- college math -
**Steve**, Saturday, September 14, 2013 at 2:29pm2 equations

4 unknowns

no single solution.

- college math -
**Cece**, Saturday, September 14, 2013 at 2:40pmI need more than that. What are the values of "x"

I worked out the values of "y" to be:

y = (15/11) + (9/11z) - (16/11w), but I could be wrong

- college math -
**Steve**, Saturday, September 14, 2013 at 2:43pmoh, well, if that's the kind of solution you want, then it's ok.

Eliminating x, I get

5x+y+z+w = -5

5x-10y+10z-15w = -20

11y-9z+16w = 15

so your answer looks good to me.

- college math -
**Cece**, Saturday, September 14, 2013 at 3:08pmso are you saying that "x" is 15?

- college math -
**Steve**, Saturday, September 14, 2013 at 3:54pmNo. I used your answer and showed that no matter what x,z,w are, the expression you got will work for y. We eliminated x, remember?

**Related Questions**

Math 116 - Consider the following system of equations. y=2x-2 y-2x=9 What can ...

Math 1 - Consider the following system of equations. y = 4x - 4 y - 4x = 3 What...

College Algebra - Solve the system of equations using matrices. If system has no...

math - Consider the following system of equations. Y = 3x – 7 Y - 3x = 5 a) The ...

College Algebra - Solve the system of equations. Then classify the system. 7x-7y...

algebra - solve the system of equations by graphing. Then classify the system as...

Algebra - Suppose a linear system of equations has 2012 equations and 2013 ...

PLEASE CHECK - 1.)Solve for y in the following system of equations. x + 4y = -38...

Math-System of Equations - 1. Solve for x, y, z in the following system: 2x-3y-2...

alegebra - solve the system of equations by graphing. then classify the system ...