Question

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?

Answer 1

• The secret number is 7

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