Question

Nine less than twice a number is thirty one

Answer 1

You are implying that 2x- 9=31

Add 9:

2x=40

Divided by :2

x=20

therefore I thing the number is 20

Answer 2

Answer:

$\boxed{x=20}$

Step-by-step explanation:

Less than- you had to subtract by the minus sign.

First you had to translate words into an equation.

2x-9=31

Then you solve by equation and add by nine from both sides of equation form.

$2x-9+9=31+9$

$2x=40$

Next, you divide by two from both sides of equation form.

$\frac{2x}{2}= \frac{40}{2}$

$40/2=20$

$40/20=2$

$2*20=40$

$20*2=40$

$x=20$

Hope this helps!

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-Charlie