4 more than twice a number is 721

The number (x) in: "4 more than twice a number is 721" 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 4, you get 721.

To solve this, you first write the problem as an algebra equation as follows: 2x + 4 = 721

Then you solve the equation by subtracting 4 from both sides, and then divide both sides by 2. Here is the math to illustrate better:

2x + 4 = 721

2x + 4 - 4 = 721 - 4
2x = 717

2x/2 = 717/2
x = 358.5

Answer = 358.5

The answer above is correct, because twice 358.5 is 717, and 4 more than 717 is in fact 721.

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4 more than twice a number is 722
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