SOLUTION: 2s+f=40.75 s+2f=37.25

Question 265113: 2s+f=40.75
s+2f=37.25
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
2s+f=40.75 MULTIPLY BY -2 & ADD
s+2f=37.25
-4s-2f=-81.50
---------------
-3s=-44.25
s=-44.25/-3
s=14.75 ans.
2*14.75+f=40.75
29.50+f=40.75
f=40.75-29.50
f=11.25 ans.
Proof:
14.75+2*11.25=37.25
29.50+11.25=40.75
40.75=40.75

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