Hilda adds 5 to a number, then multiplies the sum by negative 2. The result is 6. Write an equation to find the number, x.

What is the number? Enter your answer in the box.

If the mystery number is x then:

Hilda adds 5 to a number: x + 5

multiplies the sum by negative 2: (x + 5) * - 2 which is - 2 (x + 5).

(Use parentheses for "x+5" because Hilda added 5 to x first before multiplying it by - 2)

So the equation to find the number x is - 2 (x + 5)