Difference of two negative numbers may or may not be negative. It depends on the numbers taken as well as on the sequence in which they are taken. Then, a-b=b-a=0, (which is neither negative nor positive..!!!) So difference of two negative numbers may be positive, negative or even zero.
2x-14=-3x+6 You need to combine like terms and get all the x's on one side and the numbers on the other 2x+3x-14=6 5x=6+14 5x=20 now divide to get x alone x=4