Three of anything minus ten of the same thing leaves negative seven of them.
Negative ten fifths.
(-10) - (+7) = -10 - 7 = -17
-10-(-60)=50 A negative and a negative equals a positive. Therefore, negative ten minus negative sixty is the same as negative ten PLUS sixty. Sixty minus ten equals fifty.
Seven minus negative two times negative 4 is equal to -1
This become a plus positive, -7 minus -7 leaves zero
Seven minus a negative six equals a positive one