9 more than twice a number is 798

The number (x) in: "9 more than twice a number is 798" 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 798.

To solve this, you first write the problem as an algebra equation as follows: 2x + 9 = 798

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 = 798

2x + 9 - 9 = 798 - 9
2x = 789

2x/2 = 789/2
x = 394.5

Answer = 394.5

The answer above is correct, because twice 394.5 is 789, and 9 more than 789 is in fact 798.

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9 more than twice a number is 799
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