Question

5 less than a number is twice the sum of that number and 9

Answer 1

The answer is going to be 7 or X=7. Here is how that conclusion came to be. Five less than twice a number is 9; here is the mathematical sentence we created to represent the statement:

2X-5=9 now lets work it.

2X-5+5=9+5

2X=14 , lets divide boyh sides of the equation by 2.

2X/2=14/2

X=7 Now lets prove this number represents X.

2(7)-5=9

14–5=9

9=9

I HOPE THIS HELPED YOU.

Answer 2

let the number be " x "

`\bold{x - 5 = 2(x + 9)} \\\bold{ x - 5 = 2x + 18 }`

gathering the like terms together , we get

`\bold{2x - x = - 5 - 18} \\\bold{ x = - 23}`

hope helpful~