3 more than twice a number is 621

The number (x) in: "3 more than twice a number is 621" is what we are solving here.

In other words, you are looking for a number (x) that if you multiply it by two (same as twice) and then add 3, you get 621.

To solve this, you first write the problem as an algebra equation as follows: 2x + 3 = 621

Then you solve the equation by subtracting 3 from both sides, and then divide both sides by 2. Here is the math to illustrate better:

2x + 3 = 621

2x + 3 - 3 = 621 - 3
2x = 618

2x/2 = 618/2
x = 309

Answer = 309

The answer above is correct, because twice 309 is 618, and 3 more than 618 is in fact 621.

More Than Twice a number
Go here to solve a similar algebra problem.

3 more than twice a number is 622
Try to solve the next algebra problem on our list before you go here to check your answer.