SOLUTION: twice a certain number is subtracted from 9 times the number, the result is 21. find the number
Algebra.Com
Question 683558: twice a certain number is subtracted from 9 times the number, the result is 21. find the number
Answer by amc4452(2) (Show Source): You can put this solution on YOUR website!
9x-2x=21 on left subtract the like terms
7x=21 divide both sides by 7
7x/7=21/7 simply
x=3
check
9(3)-2(3)=21
27 - 6 =21
RELATED QUESTIONS
Twice a certain number is subtracted from 9 times the number the result is 21 find the... (answered by Alan3354)
when twice a number is subtracted from 33, the result is 21. find the... (answered by TimothyLamb)
If 9 is subtracted from three times a certain number, the result is 39. Find the number.
(answered by edjones,Alan3354)
if two -fifths of a certain number is subtracted from twice the number the result is 4... (answered by NancyLam)
A certain number is subtracted 4 times from twice from square of the number and the... (answered by ikleyn)
If 9 is subtracted from seven times a certain number, the result is the same as if 23 is... (answered by stanbon)
Wen 4 s subtracted 4rm twice a certain number the result s 21 added to a quarter of that... (answered by solver91311)
if 18 is subtracted from six times a certain number, the result is 96. Find the... (answered by tutor_paul)
When 18 is subtracted from four times a certain number, the result is the original... (answered by jim_thompson5910)