SOLUTION: If r=9 and 4r+3s=75, what is the value of s?

Question 938106: If r=9 and 4r+3s=75, what is the value of s?
Found 2 solutions by ewatrrr, Stitch:
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
If r=9 and 4r+3s=75
Plug and Play
...
36 + 3s = 75
3s = 39
s = 13
Answer by Stitch(470) (Show Source): You can put this solution on YOUR website!
Given r = 9

Plug 9 into the equation for r

Subtract 36 from both sides.

Divide both sides by 3

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