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
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.
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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!!
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
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