The answer is 12. My explanations is that LCM is the smallest number that both numbers can fit into. 12 fits into 12 once, and 4 fits into 12 3 times, so 12 is the answer.
The net force will be 3 N to the right.
12N - 8N = 4N - 7N= -3N. 3N is the net force to the right.
There is a 1 out of 12, you could have a white shirt and blue pants and on and on with them all
