3 more than twice a number is 318

The number (x) in: "3 more than twice a number is 318" 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 3, you get 318.

To solve this, you first write the problem as an algebra equation as follows: 2x + 3 = 318

Then you solve the equation by subtracting 3 from both sides, and then divide both sides by 2. Here is the math to illustrate better:

2x + 3 = 318

2x + 3 - 3 = 318 - 3
2x = 315

2x/2 = 315/2
x = 157.5

Answer = 157.5

The answer above is correct, because twice 157.5 is 315, and 3 more than 315 is in fact 318.

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3 more than twice a number is 319
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