gelenif0eD2ogp gelenif0eD2ogp
  • 14-02-2016
  • Mathematics
contestada

Which equation can be used to represent six added to twice the sum of a number and four is equal to one-half of the difference of three and the number?

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meerkat18
meerkat18 meerkat18
  • 21-02-2016
six added to twice the sum of a number and four is equal to one-half of the difference of thee and the number.

Let x be the number.

6 + 2(x + 4) = 1/2 * (3-x)

Find the value of x.

6 + 2x + 8 = 3/2 - x/2
2x + x/2 = 3/2 - 8 - 6
2x + x/2 = 3/2 - 14
2(2x + x/2) = 2(3/2 - 14)
4x + x = 3 - 28
5x = -25
x = -25/5
x = -5

To check: x = -5

6 + 2(x + 4) = 1/2 * (3-x)

6 + 2(-5+4) = 1/2 * (3 - (-5))
6 + 2 (-1) = 1/2 * (3 + 5)
6 - 2 = 1/2 (8)
4 = 4

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robertgbmx robertgbmx
  • 30-01-2021

Answer: Opion  A

(A) 6 + 2(X + 4)= 1/2(3-X) <=========+ 100 %

Step-by-step explanation:

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