SOLUTION: 15x + 20y = 400 What is the process to solve this equation for x and y?

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Question 175086: 15x + 20y = 400
What is the process to solve this equation for x and y?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
15x + 20y = 400
What is the process to solve this equation for x and y?
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It's not possible. When you have 2 unknowns, you need 2 equations.