Because they are idiots and they want to cause harm to mankind.
This is a stereotype. I'm sure not everyone is negative. You should meet new people if you feel this way.
When people are in debt! You can owe people so much money that you actually have a negative amount of money.
it was the fear of being different.
Because his entire presidency is a disappointment.
*Environmental - the trash left after climbers.
The negative effect was that they did not hire workers to do the job so a hand full of people did not have a job after the reaper was invented.
In my experience... Yes, most people are generally negative.
Negative x negative x negative = negative.
One very negative way that people try to get respect is by bullying. Bullying does not help the person however, they might gain respect because people fear them but they will not have friends and will be considered the odd ball out because no one likes a bully. So bullying is negative for everyone, the people that are being bullied and the bully himself.
Welfare is not negative.
Think of it in terms of money. If you've got $5 that's positive. If you owe someone $5 that's negative. So what's the position if 7 people are each in debt to the tune of $5? $35 in debt in total, so negative 35.
subtraction is merely adding a negative number, so subtracting a negative number is adding the negative of a negative number. It should be pointed out that while most people find this concept obvious, it was not obvious to ancient mathematicians. In fact, as late as the 1800s, most mathematicians thought that negative numbers were nonsense.