0
How do you use the elimination method to solve 3r-5s equals -16 and 5r plus 3s equals 64?
Updated: 4/28/2022
Wiki User
∙ 13y agoBest Answer
3(3r-5s = -16)
5(5r+3s = 64)
Multiply all terms in the first equation by 3 and in the second equation by 5:
9r-15s = -48
25r+15s = 320
Add the equations together in order to eliminate s:
34r = 272
Divide both sides by 34 to find the value of r:
r = 8
Substitute the value of r into the original equations to find the value of s:
Therefore: r = 8 and s = 8
Wiki User
∙ 13y agoThis answer is:
Add your answer:
Earn +20 ptsQ: How do you use the elimination method to solve 3r-5s equals -16 and 5r plus 3s equals 64?
Write your answer...
Submit
Still have questions?
Continue Learning about Other Math
Related questions
Copyright ©2024 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.