Sunday

February 1, 2015

February 1, 2015

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!

**Answer this Question**

**Related Questions**

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

MS. SUE - MATH HELP PLEASE - The sum of five times a number and twice a second ...

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

algebra - Twice the first number is eleven more than the sum of the other two ...

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

algebra - Five times the smallest of three consecutive odd integers is ten more ...

math - The greater of two numbers is 1 more than twice the smaller. Three times ...

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

Algebra 1 - Find three consecutive even numbers such that the difference between...

Grade 8 Math - Can you write them in Mathematical/numbers form I'll solve them ...