2+2=5, i will prove it, as we know, 0=0, so that means 16 - 12 - 4 = 0, just like 20 - 15 - 5 =0, so that means these 2 are equal. so if we do 4(4-3-1) = 5(4-3-1 )it leaves us with 4 = 5, with that knowledge, that means 4 is equal to 5, so with that, we can conclude that 2 + 2 = 5