Respuesta :

smmwaite

Answer:

Unknown number, x=-4

Step-by-step explanation:

Forming the equation from the information provided above.  

9=2x+17

If we solve for the unknown number, we first collect like terms together.

2x=9-17

2x=-8

Divide both sides of the equal sign by 2 the coefficient of x

x=-4

alinakincsem

Answer:

x = -4

Explanation:

We are given the following statement which we are to translate into a mathematical equation and then solve it:

'nine is seventeen more than two times a number'

Assuming [tex] x [/tex] to be the unknown number, this can be written as:

[tex] 9 = 2 x + 1 7 [/tex]

Solving for x:

[tex] 2 x = 9 - 1 7 [/tex]

[tex] 2 x = - 8 [/tex]

[tex]x=\frac{-8}{2}[/tex]

[tex]x=-4[/tex]

Therefore, the unknown number is -4.

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