### Instruction: If a certain negative number is multiplied by six, the result is the  same as 20 less than the original number.  What is the value of the  original number?### Response: To find the original number, I need to set up an equation that represents the given information.
Let x be the original negative number.
Then, multiplying it by six gives 6x.
The result is the same as 20 less than x, which means 6x = x - 20.
To solve for x, I need to isolate it on one side of the equation.
I can do this by subtracting x from both sides, which gives 5x = -20.
Then, I can divide both sides by 5, which gives x = -4.
This is the value of the original negative number.