The multiplication we need to make is:

To answer this question we need to use the following rules for multiplications with signs:

We can see that in our expression we have the last case: a negative number multiplied by a positive number. In this case, the negative number is -6 and the positive number is 1.
So, we know from the rule that the result will be negative.
And finally, we multiply just the numbers: 6 by 1 is 6.
In summary, the result is:

Answer: -6