9 more than twice a number is 831

The number (x) in: "9 more than twice a number is 831" 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 831.

To solve this, you first write the problem as an algebra equation as follows: 2x + 9 = 831

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 = 831

2x + 9 - 9 = 831 - 9
2x = 822

2x/2 = 822/2
x = 411

Answer = 411

The answer above is correct, because twice 411 is 822, and 9 more than 822 is in fact 831.

More Than Twice a number
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9 more than twice a number is 832
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