SOLUTION: Find a number which is decreased by 54 and is 5 times its opposite?

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Question 322806: Find a number which is decreased by 54 and is 5 times its opposite?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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Find a number which is decreased by 54 and is 5 times its opposite?
:
Let x = "a number
then
-x = it's opposite
:
x - 54 = 5(-x)
x - 54 = -5x
x + 5x = +54
6x = 54
x = 54%2F6
x = 9
;
;
Check solution in original statement
9 - 54 = 5(-9)
-45 = -45