Question

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.

Answer 1

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)

Answer 2

Answer: Required equation :
`(x+5)*-2=6`

The number is -8 .

Explanation:

Let x be the number .

Given : Hilda adds 5 to a number, then multiplies the sum by negative 2. The result is 6.

According to the statement , we have

`(x+5)*-2=6`

Required equation :
`(x+5)*-2=6`

To solve for x , first we divide both sides by -2 , we get

`(x+5)=-3`

Subtracting 5 on both sides , we get

`x=-8`

Hence, the number is -8 .