If the number is n then twice the number is 2n and 7 less than twice the number is 2n - 7
This 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.
The number is 7.
This forms an equation which solves nicely: 2x-7 = x-1 x-7 = -1 x = 6
The greatest prime number less than 20 is 19. Not sure what "then twice" is unless you are wanting to double it, which becomes 38.
2x + 7 = 15 Subtract 7 from both sides: 2x = 8 Divide both sides by 2: x = 4
46
Let the number be x Twice a number means 2x 7 less than twice a number means 2x-7
2k - 7
2x - 7 = -1
The number is 7.
If the number is N then 2N - 5 = 7 then 2N = 12 so that N = 6
This forms an equation which solves nicely: 2x-7 = x-1 x-7 = -1 x = 6
5+5=1010-7=3the answer is 3
2n-3=(-7) 2n=-4 n=-2
Example:VERBAL SENTENCE:Seven more than twice a number is four less than thrice the number.MATHEMATICAL EQUATION:(seven more than) (four less than)(twice a number) is (thrice a number)2x + 7 = 3x - 4=Earljoyce8♥=Hope this helps!!
The greatest prime number less than 20 is 19. Not sure what "then twice" is unless you are wanting to double it, which becomes 38.
2x + 7 = 15 Subtract 7 from both sides: 2x = 8 Divide both sides by 2: x = 4
the equation is 2x + 4 = x - 3 solving it yields x = -7