SOLUTION: Please help me write out and solve this equation: At the Shake Shack two orders of fries and four shakes costs $5.90. How much is an order of fries.

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Question 240475: Please help me write out and solve this equation:
At the Shake Shack two orders of fries and four shakes costs $5.90. How much is an order of fries.
Answer by scott8148(5896) About Me  (Show Source):
You can put this solution on YOUR website!
2f + 4s = $5.90

not enough information to solve
___ in general, you need as many independent equations as there are unknowns