SOLUTION: find a number if 25 less than 3 times the number equals eight times the number obtained when 5 is subtracted from the number

Question 617290: find a number if 25 less than 3 times the number equals eight times the number obtained when 5 is subtracted from the number
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Let n = "a number"
just write an equation for what it says
:
find a number if 25 less than 3 times the number equals eight times the number obtained when 5 is subtracted from the number
3n - 25 = 8(n - 5)
3n - 25 = 8n - 40
-25 + 40 = 8n - 3n
15 = 5n
n = 15/5
n = 3
;
:
See if that check out in the original statement:
3(3) - 25 = 8(3 - 5)
9 - 25 = 8(-2)
-16 = -16
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