SOLUTION: Please help me solve this equation.
When 2 times a number is substracted from 7 times the number the result is 40. What is the number.
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When 2 times a number is substracted from 7 times the number the result is 40. What is the number.
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Question 230739: Please help me solve this equation.
When 2 times a number is substracted from 7 times the number the result is 40. What is the number. Found 2 solutions by unlockmath, MathTherapy:Answer by unlockmath(1688) (Show Source):
You can put this solution on YOUR website! Hello,
Let's have x be the unknown number. Here's how the equation will look.
2x-7x=40
Now we need to solve what x is. Adding 2x - 7x is -5x so
-5x = 40
Divide both sides by -5
x = -8
There you go, you can plug -8 into the original equation and it works.
-8 is the answer
you're welcome
RJ Toftness
www.math-unlock.com
You can put this solution on YOUR website! Please help me solve this equation.
When 2 times a number is substracted from 7 times the number the result is 40. What is the number.
Let the number be N
Since when 2 times the number is substracted from 7 times the number, the result is 40, then we'll have: 7N - 2N = 40
