Respuesta :

-1x+(9)

multiply the negative first across the second parenthesis and then do the math

Answer:

-1x+9

Step-by-step explanation:

Expression is a combination of terms, separated by signs.

We know that:

  • -(a+b) = -a-b ..(i)

Given expression:

  • (-3x/4 - 8) - (-17 + 2x/8)

Thus applying law (i):

  • -3x/4 - 8 -(-17) -(2x/8)

We know by sign convention

  • -*- = +
  • +*- = -

Thus

  • -3x/4 - 8 +17 - 2x/8

Solve now by rearranging like terms:

  • (-3x/4 - 2x/8)+ (17-8)
  • (-3x/4 - x/4) + 9 [Cancel 2 with 8]
  • -3x-x/4 + 9
  • -4x/4 + 9 (Take 4 as common denominator for LCM)
  • -1x + 9

Option B looks good

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