9 more than twice a number is 804

The number (x) in: "9 more than twice a number is 804" 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 9, you get 804.

To solve this, you first write the problem as an algebra equation as follows: 2x + 9 = 804

Then you solve the equation by subtracting 9 from both sides, and then divide both sides by 2. Here is the math to illustrate better:

2x + 9 = 804

2x + 9 - 9 = 804 - 9
2x = 795

2x/2 = 795/2
x = 397.5

Answer = 397.5

The answer above is correct, because twice 397.5 is 795, and 9 more than 795 is in fact 804.

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9 more than twice a number is 805
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