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.
Chat with our AI personalities
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
7 less than a number is an algebraic expression. Given the number the expression can be evaluated. 7 is less than a number is a statement in the form of an inequality. It is true for some values of the number and not for others.