SOLUTION: PLease help me solve this word problem: Find a number which is decreased by 18 is 5 times its opposite. ----- Thank you =)

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Question 234249: PLease help me solve this word problem:
Find a number which is decreased by 18 is 5 times its opposite.
----- Thank you =)
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Find a number which is decreased by 18 is 5 times its opposite.
:
An opposite is the same number with an opposite sign
:
x - 18 = 5(-x)
x - 18 = -5x
x + 5x = + 18
6x = 18
x = 3
;
;
See if this is true
3 - 18 = 5(-3)