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A secret number was unearthed in the Mayan ruins. When the number was increased by 5 and this sum
multiplied by -2, the result was 18 greater than 6 times the opposite of the number. What was the secret
number found in the ruins?

Sagot :

Mhanifaidn

Answer:

  • The secret number is 7

Step-by-step explanation:

Let the number is x.

We got the following equation according to the given details:

  • (x + 5)(- 2) = (-x)*6 + 18

Solve for x:

  • - 2x - 10 = - 6x + 18
  • 6x - 2x = 18 + 10
  • 4x = 28
  • x = 7
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