Question

Twice a number is one

Answer 1

For this case we must propose a linear equation.

Let "x" be the variable that represents the unknown number.

So, we have:

$2x$: Represents twice the number

$2x = 1$: Represents that twice the number is equal to one.

We clear the value of "x":

We divide between "2" on both sides of the equation:

$\frac {2x} {2} = \frac {1} {2}\\x = \frac {1} {2}$

Answer:

$x = \frac {1} {2}$

Answer 2

would the answers be 0.5? i'm not sure but i tried. have a great day.

cuz half (x2) of a number (x) is (=) one..

2x=1

0.5=x

0.5x2=1