SOLUTION: I am thinking of a whole number. If I divide it by 13, then multiply the answer by 12, then subtract 20, and then add 89, I end up with 93. What was my original number?
Algebra ->
Customizable Word Problem Solvers
-> Misc
-> SOLUTION: I am thinking of a whole number. If I divide it by 13, then multiply the answer by 12, then subtract 20, and then add 89, I end up with 93. What was my original number?
Log On
Question 199355: I am thinking of a whole number. If I divide it by 13, then multiply the answer by 12, then subtract 20, and then add 89, I end up with 93. What was my original number? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! I am thinking of a whole number. If I divide it by 13, then multiply the answer
by 12, then subtract 20, and then add 89, I end up with 93.
What was my original number?
:
x = "a number"
:
( * 12) - 20 + 89 = 93
:
( * 12) + 69 = 93
: = 93 - 69
: = 24
:
Multiply both sides by 13
12x = 24 * 13
:
12x = 312
x =
x = 26 is the number
:
:
Check solution in original statement
( * 12) - 20 + 89 = 93
(2*12) - 20 + 89 = 93
