if u mean +13 - (+8) = 5, then yes
5
8 plus 5 equals 13
5+8 = 13
5
273 13+8 = 21 and 13*21 = 273
8+5 = 6+7 = 8+9 13 = 13 = 17 Can you rephrase? the question isn't too clear...
13
Result is -13 . -8 + 3 - 8 = -5 - 8 = -13
13
13
2x + 5 = 13 2x = 8 2x/2 = 8/2 x=4
3x+5 = 2x+13 3x-2x = 13-5 x = 8