Sunday

April 20, 2014

April 20, 2014

Posted by **Jane** on Sunday, December 1, 2013 at 10:29pm.

- Math -
**Reiny**, Sunday, December 1, 2013 at 11:28pmfirst number --- x

2nd number --- y

2x - y = -1

or

y = 2x+1

2y + 3x = 9

2(2x+1) + 3x = 9

4x + 2 + 3x = 9

7x = 7

x = 1

then y = 3

The first number is 1, and the second number is 3

check:

twice the first - second

= 2 - 3 = -1 , check!

twice the second added to three times the first

2(3) + 3(1)

= 9 , check!

**Related Questions**

Please help quick! Math - The sum of three times a first number n twice second ...

math - yea it sais, three times one number added to another number is 18. twice ...

Math - 1)one number is four more than a second number. Twice the second is three...

Math - The sum of three times a first number and twice a scond number is 43. If ...

6th grade math - Can you check these problems, please? Translate each phrase ...

Math - The sum of twice a number and another number is 24. The difference of ...

Algebra - six times a number minus twice the same number.

Algebra. - Three times the square of a number minus twice the same number is 8...

Math - If 1 more than a certain number is 3 less than a second number, the ...

algebra - if 5 times the first number plus 3 times the second number equals 47 ...