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EzraWell, buttercup, if you want to solve this little brain teaser, you just set up an equation like this: 2x - 7 = 15. Then you solve for x by adding 7 to both sides, giving you 2x = 22. Finally, you divide by 2, and voila, the number you're looking for is 11. Easy peasy lemon squeezy!
Let's denote the unknown number as x. The expression "twice a number" can be represented as 2x, and "seven less than twice a number" would be 2x - 7. According to the given equation, 2x - 7 equals 15. To solve for x, you would add 7 to both sides to isolate 2x, then divide by 2 to find x. Therefore, the unknown number is x = 11.
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Which number is seven less than twice the square root of eighty-one?
The answer is 11 !
What is the answer for the problem Seven less than twice a number is the same as one less than the number. What is the number?
This forms an equation which solves nicely: 2x-7 = x-1 x-7 = -1 x = 6
What is 7 less than twice a number?
If the number is n then twice the number is 2n and 7 less than twice the number is 2n - 7This could also be a boolean variable based on another variable. If the number is less than or equal to 3.5, the variable is false. Otherwise, it is true.
What is one less than twice a number?
One less than twice a number = (X times 2) minus 1, (where X = your number of choice).
What is the sum of twice a number and 14 less than the number is the same as the difference between -6 and the number?
20
