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vladimir2022 [97]
3 years ago
6

How is subtracting-4x from 9x similar to subtracting -4 from 9?

Mathematics
1 answer:
snow_tiger [21]3 years ago
4 0
Question:

How is subtracting -4x from 9x similar to subtraction -4 from 9?

Answer:

If both of them have the same variable lets say this:

2a + 2a = 4a
Just add 2 + 2 and then keep the a later at the end since they both have the same letter.

So in this case, it will be the same as subtracting -4 from 9 because they both have the same variables so the x would stay the same:

-4x + 9x = 5x 
would be the answer.


Hope this helped! 

~Shane

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Step-by-step explanation:

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With the given equations, we can form matrices to represent them.

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The linear system A is represented as

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The linear system B is represented as

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Step 4:

The linear system C is represented as

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The linear system D is represented as

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Of the four options, the linear system D has the matrix of constants [[12], [11], [4]]. So the answer is option D. D.

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