The opposite of a number is the number you obtain by just changing the sign.
The opposite of 5 is -5. The opposite of 100 is -100. The opposite of -4.5 is 4.5. The opposite of 0 is 0. Zero is the only number that is equal to its opposite.
You need to subtract -45, so add the opposite of -45 which is 45.
six years of the school and I have a lot to do you and your wife and your kids will love it too much for your life as a family that you have been in love and I hope that I am able and not murdaworth into it for a long while now I am going back and I have been thinking of you ❤ ♥