
The number (x) in: "4 more than twice a number is 704" 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 704.
To solve this, you first write the problem as an algebra equation as follows: 2x + 4 = 704
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 = 704
2x + 4 - 4 = 704 - 4
2x = 700
2x/2 = 700/2
x = 350
Answer = 350
The answer above is correct, because twice 350 is 700, and 4 more than 700 is in fact 704.
More Than Twice a number
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4 more than twice a number is 705
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