9 more than twice a number is 791

The number (x) in: "9 more than twice a number is 791" 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 791.

To solve this, you first write the problem as an algebra equation as follows: 2x + 9 = 791

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 = 791

2x + 9 - 9 = 791 - 9
2x = 782

2x/2 = 782/2
x = 391

Answer = 391

The answer above is correct, because twice 391 is 782, and 9 more than 782 is in fact 791.

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9 more than twice a number is 792
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