SOLUTION: When a certain number is trebled then decreased by 1, the result is twice as much as 5 more than the number. What is the number?
Algebra.Com
Question 800171: When a certain number is trebled then decreased by 1, the result is twice as much as 5 more than the number. What is the number?
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
When a certain number is trebled then decreased by 1, the result is twice as much as 5 more than the number.
3x - 1 = 2(x + 5)
3x - 1 = 2x + 10
Collect like terms;
3x - 2x = 10 + 1
x = 11
The number is 11.
Hope this helps.
:-)
RELATED QUESTIONS
if a number is trebled , it gives the same result as when 28 is added to it.what is the... (answered by richwmiller)
When twice a number is decreased by 5, the result is 43. What is the... (answered by mananth)
When 1 is added to a number and the answer then trebled, it gives the same result as... (answered by josgarithmetic,Alan3354)
How would I solve
If a number is increased by 5 and then trebled, the result is six... (answered by edjones)
if the number is trebled, it gives the same result as when 28 is added to it. what is the (answered by drk)
If 50 is decreased by 4times a certain number, the result is 15 more than the number.... (answered by macston)
When a number is decreased by 13 and the result is -2 what is... (answered by swincher4391)
If 10 less than twice a number is decreased by 5 less than 3 times the number, the result (answered by ankor@dixie-net.com)
When a certain number is decreased by 18 the result is the same as if the number had been (answered by macston)