Final answer:
To find the number in the given equation, we set up an equation and solve for x.
Step-by-step explanation:
To find the number, let's set up an equation. The difference between the number and 4 can be represented as x - 4. And twice this difference is 2(x-4). We know that this value is twenty, so we can set up the equation: 2(x - 4) = 20.
To solve for x, we first distribute the 2 to both terms inside the parentheses: 2x - 8 = 20. Next, we isolate the variable x by adding 8 to both sides of the equation: 2x = 28. Finally, we divide both sides by 2 to solve for x, giving us the answer: x = 14.
Therefore, the number is 14.