4 more than twice a number is 690

The number (x) in: "4 more than twice a number is 690" 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 690.

To solve this, you first write the problem as an algebra equation as follows: 2x + 4 = 690

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 = 690

2x + 4 - 4 = 690 - 4
2x = 686

2x/2 = 686/2
x = 343

Answer = 343

The answer above is correct, because twice 343 is 686, and 4 more than 686 is in fact 690.

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4 more than twice a number is 691
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