SOLUTION: What is twenty decreased by twice a number is ten less than three times the number. Find the number.

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Question 872425: What is twenty decreased by twice a number is ten less than three times the number. Find the number.
Found 4 solutions by ewatrrr, MakubeX, MathTherapy, richwmiller:
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
20 + 2n = 3n - 10
30 = n
CHECKING our answer***
20 + 60 = 90 - 10 = 80
Wish You the Best in your Studies.
Answer by MakubeX(1)   (Show Source): You can put this solution on YOUR website!
...
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

What is
twenty decreased by twice a number is ten less than three times the number. Find the number. 


Number: 

You can do the check!! 



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Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
 Incredible! Three answers so far and two are wrong. They have the wrong set up.

The tutor with the correct answer shows no work at all.



20-2n=3n-10

30=5n

n=6



 

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