Saturday

October 25, 2014

October 25, 2014

Posted by **Rissa** on Wednesday, March 10, 2010 at 7:22pm.

5r-3s=13

3r+5s=69

- Math116 -
**Damon**, Wednesday, March 10, 2010 at 7:30pm15 r - 9 s = 39

15 r + 25s = 345

add negative of second to first

0 r -34 s = -306

s = 9 etc

**Answer this Question**

**Related Questions**

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

math116 - solve using the multiplication principle, -4x>1/11

math116 - I find from the first equation that x = 3y and plugging in to the ...

math elimination method - elimination method really confuses me. solve by ...

elimination method - solve the equation through elimination:8y+4z=7 and 6y - 8z...

math - can someone please help me with this elimination methods problem? 0.05x+0...

Algebra - Solve by elimination method. 7r-3s=14 3r+7s=64 Could never figure out ...

algebra - I just need a quick check before I hand in my work if you would......

Math - Use elimination to solve each system of equations. x+y-2z=10 8x-9y-z=5 3x...

algebra URGENT! - Solve the system using elimination. 2x – 2y = –8 x + 2y = –1 ...