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Find the coefficient of $x$ when $3(x - 4) + 4(7 - 2x^2 + 5x) - 8(2x - 1)$ is simplified.

 Jun 2, 2020
 #1
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We can start off by simplifying this expression:

 

3(x - 4) + 4(7 - 2x^2 + 5x) - 8(2x - 1)

 

3x - 12 + 28 - 8x^2 + 20x - 16x - 8

 

3x + 16 - 8x^2 + 4x - 8

 

7x + 8 - 8x^2

 

Coefficient of x is the number in front of x.

 

Which means the coefficient of x in 7x is 7.

 Jun 2, 2020

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