0
Well, 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!
Still curious? Ask our experts.
Chat with our AI personalities
Fran
Rafa
BeauLet'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.
Add your answer:
Earn +20 pts
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
