Q:
Simplify a - {b - [c - (d - e) - f] - g}.
a + b + c - d + e - f + g
a - b + c - d + e - f + g
a + b + c + d + e - f + g
a - b + c - d + e + f - g

A: a - {b - [c - (d - e) - f] - g} = a - b + c - d + e - f + g

Expert answered|debnjerry|Points 42940|

Question

Asked 1/17/2013 1:37:58 PM

Updated 1/17/2013 8:53:40 PM

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(2n + 5) - (3n + 7) + (4n - 9)

= 2n + 5 - 3n - 7 + 4n - 9

= 3n - 11

= 2n + 5 - 3n - 7 + 4n - 9

= 3n - 11

Added 1/17/2013 8:53:40 PM

Simplify 5t + (t - 3) - [(7t + 5) - (8 - 3t)].
-4t
4t
-10t
10t
**Weegy:** (a)-4t is the answer. 5t + (t - 3) - [(7t + 5) - (8 - 3t)] = -4t **User:**
Using the polynomials Q = 3x2 + 5x - 2, R = 2 - x2, and S = 2x + 5, perform the indicated operation.
Q - [R + S]
2x2 + 3x - 9
4x2 - 3x + 9
2x2 - 3x + 9
4x2 + 3x - 9
**Weegy:** D. 5x - 4 is the answer. (More)

Question

Expert Answered

Updated 1/17/2013 8:50:08 PM

2 Answers/Comments

5t + (t - 3) - [(7t + 5) - (8 - 3t)]

= 5t + t - 3 - (7t + 5 - 8 + 3t)

= 6t - 3 - (10t - 3)

= 6t - 3 - 10t + 3

= -4t

= 5t + t - 3 - (7t + 5 - 8 + 3t)

= 6t - 3 - (10t - 3)

= 6t - 3 - 10t + 3

= -4t

Added 1/17/2013 7:55:37 PM

This answer has been confirmed as correct, not copied, and helpful.

Rated good by andrewpallarca, Confirmed by andrewpallarca [7/21/2014 4:53:16 PM]

Q - [R + S]

= 3x^2 + 5x - 2 - [(2 - x^2) + (2x + 5)]

= 3x^2 + 5x - 2 - (- x^2 +2x + 7)

= 3x^2 + 5x - 2 + x^2 - 2x - 7

= 4x^2 + 3x - 9

= 3x^2 + 5x - 2 - [(2 - x^2) + (2x + 5)]

= 3x^2 + 5x - 2 - (- x^2 +2x + 7)

= 3x^2 + 5x - 2 + x^2 - 2x - 7

= 4x^2 + 3x - 9

Added 1/17/2013 8:50:08 PM

This answer has been confirmed as correct, not copied, and helpful.

Confirmed by andrewpallarca [7/21/2014 4:53:46 PM], Rated good by andrewpallarca

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