SOLUTION: There are two mystery numbers. The sum of 2 times the first number and 9 times the second number is -17. The sum of 10 times the first number and 10 times the second number is 20.

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Question 1173318: There are two mystery numbers. The sum of 2 times the first number and 9 times the second number is -17. The sum of 10 times the first number and 10 times the second number is 20. What are the two numbers?
Answer by josgarithmetic(39628) About Me  (Show Source):
You can put this solution on YOUR website!
Numbers x and y

system%282x%2B9y=-17%2C10x%2B10y=20%29

system%282x%2B9y=-17%2Cx%2By=2%29 and you should be able.