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enicole10
02.07.2019 •
Mathematics
When two times a number is decreased by 3 the result is 11 what is the number
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Ответ:
2x - 3 = 11
Solve:
2x = 14
x = 7
The answer is 7
Ответ:
Hi there!
Let's replace "a number" by "x":
- two times x = 2x
- decreased by 3 = -3
Here's what the equation should look like:
2x - 3 = 11
Now that you have written down your equation, all you have to do now is solve it for "x" by isolating it :
2x - 3 = 11
Add 3 on each side of the equation
2x = 14
Divide each side of the equation by 2
x = 7
Your answer is: The number is 7.
There you go! I really hope this helped, if there's anything just let me know! :)
Ответ: