Question

Find the sum of the monomials 3x, -x , -9x​

Answer 1

Answer:

- 7x

Step-by-step explanation:

$3x + ( - x) + ( - 9x)$

$= (3 - 1 - 9)x$

$= - 7x$

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Answer 2

Answer:

$\huge{\orange{\boxed{-7x}}}$

$= 3x - x - 9x \: \: \\ = 3x - 10x \: \: \: \: \: \: \: \: \\ = - 7x \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

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