Translate the following phrase to an expression.
the difference between twenty and twice a number
in math, when we talk about a difference, we are talking about subtraction, it is represented by a dash(-)
Now, the question is
the difference between twenty and twice a number
Step 1
Let
" a number" = n
so,
the difference = -
and
"twice a number"=2n
then,
the difference between twenty and twice a number=20 - 2n
the answer is 20-2n
