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rosijanka [135]
3 years ago
9

When are x+3 and 2x equal? When are they not equal?

Mathematics
1 answer:
irinina [24]3 years ago
3 0

Answer:

x+3= 2x when x = 3

3+3 = 2*3

6= 6

They are not equal when x is any other number rather than 3

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3 0
3 years ago
Read 2 more answers
Subtract: ( - 2x4 - 4y + 4z² +6) - (-9x4 – 3y + 4z? +9) 0 - 7x² + y + 3 0 - 11x4 - 7 - 3​
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Okay well for starters, you can't subtract that because it's an expression, not an equation. And secondly, there was '?' which I'm going to assue=me was a typing error.

Now to actually simplify this mess of an expression, you just need to combine the like-terms! Once you do that you really can't do anything else, since you don't know the varibles.

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Question 14
MissTica

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Hola como esta

yo soy de Argentina

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