Question

Write an equation. Let x be the unknown number.

Answer 1

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

Answer 2

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 $x$ to be the unknown number, this can be written as:

$9 = 2 x + 1 7$

Solving for x:

$2 x = 9 - 1 7$

$2 x = - 8$

$x=\frac{-8}{2}$

$x=-4$

Therefore, the unknown number is -4.