4 more than twice a number is 678

The number (x) in: "4 more than twice a number is 678" 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 678.

To solve this, you first write the problem as an algebra equation as follows: 2x + 4 = 678

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 = 678

2x + 4 - 4 = 678 - 4
2x = 674

2x/2 = 674/2
x = 337

Answer = 337

The answer above is correct, because twice 337 is 674, and 4 more than 674 is in fact 678.

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4 more than twice a number is 679
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