4 more than twice a number is 664

The number (x) in: "4 more than twice a number is 664" 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 664.

To solve this, you first write the problem as an algebra equation as follows: 2x + 4 = 664

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 = 664

2x + 4 - 4 = 664 - 4
2x = 660

2x/2 = 660/2
x = 330

Answer = 330

The answer above is correct, because twice 330 is 660, and 4 more than 660 is in fact 664.

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4 more than twice a number is 665
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