The answer is 4 because 2--2 the two negatives make it a positive so its 2+2=4
If they go golfing on the same day again your answer will be
42)
- 4(20+22)
- 4(40+2)
This expression are equivalent to 4(42)
3x-4 = -10
3x-4 +4 = -10 +4
3x = -6
then you can divide it :
x = -6 : 3
x= -2