
The number (x) in: "7 more than twice a number is 315" 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 7, you get 315.
To solve this, you first write the problem as an algebra equation as follows: 2x + 7 = 315
Then you solve the equation by subtracting 7 from both sides, and then divide both sides by 2. Here is the math to illustrate better:
2x + 7 = 315
2x + 7 - 7 = 315 - 7
2x = 308
2x/2 = 308/2
x = 154
Answer = 154
The answer above is correct, because twice 154 is 308, and 7 more than 308 is in fact 315.
More Than Twice a number
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7 more than twice a number is 316
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