How do you define a variable and write an expression for each phrase: a number minus the difference of the number and four?

Jul 17, 2016

$x - \left(x - 4\right)$

Explanation:

Let's call the "number" referred to as $x$.

The word DIFFERENCE is always linked with AND.

The DIFFERENCE between/of 10 AND 8 is 2. ($10 - 8 = 2$)

"A number minus ????" means $x$ - ????

"(A number minus) the (difference of the number and four)"

$\text{ "x -" } \left(x - 4\right)$

$x - \left(x - 4\right)$