SOLUTION: 40% of a number equals the difference between the number and 10

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Question 207901This question is from textbook intermediate algebra
: 40% of a number equals the difference between the number and 10 This question is from textbook intermediate algebra

Found 2 solutions by checkley77, MathTherapy:
Answer by checkley77(12844)   (Show Source): You can put this solution on YOUR website!
.4x=10-x
.4x+x=10
1.4x=10
x=10/1.4
x=7.1428 ans.

Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
40% of a number equals the difference between the number and 10

Let N be the number. Then, based on the given information, we have:

---- reducing

4N = 10N - 100 ----- Multiplying by LCD, 10

-6N = - 100
or
-----------
Check:
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20 = 50 - 30 (Multiplying by LCD, 3) (TRUE)

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