SOLUTION: A number doubled and then increased by three. The result is 21. whats the original number?
Algebra.Com
Question 229975: A number doubled and then increased by three. The result is 21. whats the original number?
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
2x+3=21
2x=18
x=9
RELATED QUESTIONS
A number is doubled and then increased by seven. The result is 93. What is the original... (answered by Stitch)
A number is doubled and then increased by 5. The result is -47. what is the original... (answered by ptaylor)
A NUMBER IS DOUBLED AND THEN DECREASED BY 11. RESULT IS 59. WHATS THE... (answered by Fombitz)
a number is divided by 4 and then increased by 160. then 40 is subtracted from the... (answered by checkley79)
a number is doubled then increased by nine and the result is 89
(answered by ikleyn)
If twice a number is increased by three and the result is doubled 34 is obtained what is... (answered by josgarithmetic)
when the opposite of a number is increased by 5 then doubled, and then added to twice the (answered by edjones,solver91311)
A number is doubled and then decreased by 11. The result is 59. What is the original... (answered by wilft1)
A number is doubled and then decreased by 13. The result is 61. What is the original... (answered by josgarithmetic)