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Lera25 [3.4K]
3 years ago
8

When I double my number and add eight , I get my number plus twelve. What is my number?

Mathematics
1 answer:
Butoxors [25]3 years ago
8 0
Your answer is 2 as if you double 2 you get 4 and add 8 oh get 12
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If you attempt to solve this by clearing fractions, you end up with an extraneous solution. Here, we'll solve the linear equations ...

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<em>Additional comment</em>

If you graph these equations, you find they describe hyperbolas that intersect at (0, 0) and (4, 4). The "solution" (0, 0) is extraneous, as both equations are undefined there.

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