Thursday

April 17, 2014

April 17, 2014

Posted by on Wednesday, May 26, 2010 at 3:25pm.

3r - 5s = -27

5r + 3s = 23

- algebra -
**Jen**, Wednesday, May 26, 2010 at 3:37pmmultiply the top by 3 and the bottom by 5 to eliminate the s's

9r-15s=-81

25r+15s=115

add the rows together

34r=34

divide both sides by 34

r=1

plugging in r=1 to either equation

5+3s=23

subtract 5 from both rows

3s=18

s=6

solution: r=1, s=6

**Related Questions**

Algebra - Process of eliminiation method ? Is there a solution, infinity or no ...

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

Algebra - Solve by elimination method.. 3r - 5s = 14 5r + 3s = 46.

algebra - how do you solve this problem by elimination method 5r-3s=14 3r+5s=56

alberga - 3r-5s=-4 5r+3s=16 elimination method

Algebra - please help me!! Solve by elimination method: 3r - 5s = 6 5r + 3s = 44...

math problem - very confused could someone help me with this using the ...

Algebra - Solve by the elimination method 2r-5s=1 5r+2s=46 The solution is ...

algebra - elimination method 3r-5s=-14 5r+35-56

Math116 - Solve by elimination 5r-3s=13 3r+5s=69