
The number (x) in: "9 more than twice a number is 789" 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 9, you get 789.
To solve this, you first write the problem as an algebra equation as follows: 2x + 9 = 789
Then you solve the equation by subtracting 9 from both sides, and then divide both sides by 2. Here is the math to illustrate better:
2x + 9 = 789
2x + 9 - 9 = 789 - 9
2x = 780
2x/2 = 780/2
x = 390
Answer = 390
The answer above is correct, because twice 390 is 780, and 9 more than 780 is in fact 789.
More Than Twice a number
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9 more than twice a number is 790
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