Thursday

July 31, 2014

July 31, 2014

Posted by **mark** on Thursday, January 1, 2009 at 5:12pm.

- Math -
**DrBob222**, Thursday, January 1, 2009 at 5:47pmLet X = the number.

7X + X^2 = 18

Rearrange to

X^2 + 7X -18 = 0

Solve for X.

You will get two answers, one positive and one negative. Both will satisfy the equation.

**Related Questions**

URGENT 8th Grade Math - Write a word phrase for the algebraic expression 3x-7. ...

math,word problem - Twice the square of a certain whole number added to 3 times ...

Math! Please Check My Answers - Key: ☺ = My Answer! 2. Write a word phrase...

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

algerbla - if the square of a postive number is decreased by five times the ...

pre algerbra - if 150 is subtracted from 7 times a number ,the result is the ...

math - if 25 is added to three times a number the result is 70.find the number?

Algebra math. - 1) the sum of the digits of a two digit number is 9. The value ...

Algebra =/ - One Number Added To Three Times Another Number Is 24. Five Times ...

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