SOLUTION: Add: (r-4s+6)+(8r+3s)+(s+9)

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Question 623489: Add: (r-4s+6)+(8r+3s)+(s+9)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
(r-4s+6)+(8r+3s)+(s+9)

r-4s+6+8r+3s+s+9

(r+8r)+(-4s+3s+s)+(6+9)

9r+0s+15

9r+15

So (r-4s+6)+(8r+3s)+(s+9) simplifies to 9r+15