SOLUTION: Twice a number minus a second number is -1. Twice the second number added. To three time the first number is 9. What are the two numbers

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Question 856523: Twice a number minus a second number is -1. Twice the second number added. To three time the first number is 9. What are the two numbers
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Let x and y represent the 1st and 2nd number respectively

 2x - y = -1

 2y + 3x = 9

0r

 2x - y = -1     |multiplying this EQ thru by 2 and adding the two EQs to eliminate y

 3x + 2y = 9

  7x = 7

   x = 1   and Using 2x+-+y+=+-1  0r y = 2x+1,  y = 3

two number are: 1 , 3 



 CHECKING our answer***

Using 2y+%2B+3x+=+9

    6 + 3 = 9

Wish You the Best in your Studies.