SOLUTION: Can you solve this equation 4f(+2)=20

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Question 228856: Can you solve this equation 4f(+2)=20
Found 2 solutions by edjones, rfer:
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
4f(+2)=20
8f=20
f=20/8
=5/2
.
Ed

Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
4f(+2)=20
8f=20
f=20/8
f=2.5