SOLUTION: oops wrte the equation worng. Please help me solve usine the elimintation method 5r-6s=13 6r+5s=40

Algebra ->  Equations -> SOLUTION: oops wrte the equation worng. Please help me solve usine the elimintation method 5r-6s=13 6r+5s=40      Log On


   

Question 132487: oops wrte the equation worng. Please help me solve usine the elimintation method

5r-6s=13 6r+5s=40
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
MULTIPLY THE FIRST EQUATION BY 5 & THE SECOND ONE BY 6 & THEN ADD THEM:
25R-30S=65
36R+30S=240
-------------------
61R=305
R=305/61
R=5 ANSWER.
5*5-6S=13
25-6S=13
-6S=13-25
-6S=-12
S=-12/-6
S=2 ANSWER.
PROOF:
6*5+5*2=40
30+10=40
40=40