SOLUTION: if a number is decreased by six in the result is multiplied by three then the answer is 15 find the unknown number
Algebra.Com
Question 1075956: if a number is decreased by six in the result is multiplied by three then the answer is 15 find the unknown number
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
a number, let it be x:
x minus 6 times 3 = 3(x-6) equals 15:
3(x-6) = 15 distribute the 3 (Distributive Properties of Multiplication)
3x-18 = 15
3x = 33
x = 11
-----------------
check:
11-6 = 5; 5 x 3 = 15 Correct
:
John
RELATED QUESTIONS
If a number is decreased by 6, and the result is multiplied by 3, than the answer is 15.... (answered by josgarithmetic,amalm06)
if a number is decreased by 6,and the result is multilied by 3,than the answer is 15.find (answered by Cromlix)
if a certain number is decreased by 8 and that difference is multiplied by 8 the result... (answered by ankor@dixie-net.com)
if a number is decreased by 14 and that result is then divided by 5, the answer is 15.... (answered by edjones)
A number is decreased by 5, then multiplied by 2. the result is 14. what is the number?
(answered by fractalier)
If a number is first doubled then decreased by six and rhe result is eight what is the... (answered by EdenWolf)
If the product of 14 and a number is decreased by 7, and then the result is divided by 5, (answered by checkley79)
If 50 is decreased by 4times a certain number, the result is 15 more than the number.... (answered by macston)
If you multiply an unknown number by 6 and then add 5, the result is 7 less than the... (answered by JulietG)