Answer:
2x - 54
Explanation:
Given : 54 decreased by twice a number.
To find : Solve it.
Solution : We have given 54 decreased by twice a number.
Let the number = x .
According to question :
Twice of a number = 2 x .
54 decreased by twice a number.
It mean twice of a number is less by 54.
We will use the minus sign for decreased term
2x - 54
Therefore, 2x - 54