How to simplify expressions?

How do you simplify expressions like -1/5(20x-10y) on a calculator?

  • on a science calculator teacher said there's a way to put this in but when you do it it doesn't simplify the answer.

  • Answer:

    1/5 is the same as 0.2

45VWHG6TENLI5HGKKZD5AVIBUM at Yahoo! Answers Visit the source

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