SOLUTION: Current formula for finding Margin m= Margin S= sell price c= cost M=(S=C)/S Problem Find an equation that given C, and desired M, will give you S Having a hard time

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Question 176195: Current formula for finding Margin
m= Margin
S= sell price
c= cost
M=(S=C)/S
Problem
Find an equation that given C, and desired M, will give you S
Having a hard time understanding the steps to find the answer:
S=C/(1-M)
Please help !
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
I think you meant M+=+%28S+-+C%29%2FS

Solve for S:

Multiply both sides by S:

SM+=+S+-+C

Add -S to both sides:

SM+-+S+=+-C

Multiply both sides by -1:

-SM+%2B+S+=+C

S+-+SM+=+C

Factor the left:

S+%28+1+-+M+%29+=+C

Divide by 1+-+M

S+=+C%2F%281+-+M%29