
The number (x) in: "1 more than twice a number is 515" 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 1, you get 515.
To solve this, you first write the problem as an algebra equation as follows: 2x + 1 = 515
Then you solve the equation by subtracting 1 from both sides, and then divide both sides by 2. Here is the math to illustrate better:
2x + 1 = 515
2x + 1 - 1 = 515 - 1
2x = 514
2x/2 = 514/2
x = 257
Answer = 257
The answer above is correct, because twice 257 is 514, and 1 more than 514 is in fact 515.
More Than Twice a number
Go here to solve a similar algebra problem.
1 more than twice a number is 516
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