9 more than twice a number is 856

The number (x) in: "9 more than twice a number is 856" 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 856.

To solve this, you first write the problem as an algebra equation as follows: 2x + 9 = 856

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 = 856

2x + 9 - 9 = 856 - 9
2x = 847

2x/2 = 847/2
x = 423.5

Answer = 423.5

The answer above is correct, because twice 423.5 is 847, and 9 more than 847 is in fact 856.

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9 more than twice a number is 857
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