The sum of the integers given the number of integers and their average is calculated by multiplying the number and the average. This is mathematically expressed as below,
Sum = (n)(m)
where n is the number and m is the average or mean.
For the first set,
Sum = (6)(x) = 6x
For the second set,
Sum = (3)(2x - 2)
= 6x - 6
If we are to subtract the second sum from the first,
Difference = (6x) - (6x - 6)
= 6x - 6x + 6
Hence, the answer is 6.
