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A number decreased by 30 is the same as 14 minus 3 times the number. What is the number?

Answer 1

The answer is #11#.

First off, we're going to have to plot out the question -

#x - 30 = 14 - 3x#

First, what I want to do is to get all the numbers to one side, and all the unknown variables to the other, so what I'm going to do is add #30# to each side of the equal mark, I also want to add #3x# to both sides, now what I have is

#4x = 44#

After that, we divide #x# by #4# to get #1x#, and we do that to #44# too, so we get.

#x = 11#

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Answer 2

Abigail Allen

Let x represent the number. According to the given information, the equation would be:

x - 30 = 14 - 3x

Now, solve for x:

x + 3x = 14 + 30 4x = 44 x = 44 / 4 x = 11

Therefore, the number is 11.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.