Thursday

October 23, 2014

October 23, 2014

Posted by **ann :)** on Thursday, September 13, 2012 at 7:50pm.

3x-12y+6z=-4 (2)

9x-16y+4z=-3 (3)

solve the system

just need the steps how to do it

- college algebra -
**Reiny**, Thursday, September 13, 2012 at 7:54pmI would go for the y's

3 times the first added to the 2nd --->

4 times the first added to the 3rd ---->

you now have two equations with only x and z

try to finish it.

**Answer this Question**

**Related Questions**

college algebra - 12x+4y+2z=-7 (1) 3x-12y+6z=-4 (2) 9x-16y+4z=-3 (3) solve the ...

math 012 - will someone please double check my answer to this problem. the ...

calc - What is dy/dx of y=12/12X-y^3 ???? Any idea anyone??? y=12/12X-y^3 I ...

algebra - What are the factors of the following trinomial? 16y^2 - 12y + 2 a) (...

College Algebra - Solve the System 2x-8y=20 3x-12y=30

math - what is the solution sets of the following a) 2x^2-7x-5 b) 5y^2-16y+3 c) ...

algebra - Select the set of equations that represents the following situation: ...

College Algebra - Find the center (h,k) and the radius (r) of the circle with ...

algebra - i need help with these problems (either a solution or how to plug them...

college algebra - Identify the center and radius of the circles represented by ...