4 more than twice a number is 687

The number (x) in: "4 more than twice a number is 687" 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 4, you get 687.

To solve this, you first write the problem as an algebra equation as follows: 2x + 4 = 687

Then you solve the equation by subtracting 4 from both sides, and then divide both sides by 2. Here is the math to illustrate better:

2x + 4 = 687

2x + 4 - 4 = 687 - 4
2x = 683

2x/2 = 683/2
x = 341.5

Answer = 341.5

The answer above is correct, because twice 341.5 is 683, and 4 more than 683 is in fact 687.

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4 more than twice a number is 688
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