It follows directly from the definition of what 1, 2, and "plus" are. 1 and 2 are simply symbols that are associated with a particular quantity. For example, 1 ampersand is: &. 2 ampersands are: &&. 3 ampersands are &&&.
Addition can be defined by taking two sets, combining them into one set, and counting the number of things in the set. So If we take a set of ampersands that has 1 ampersand (&) and another that has 1 ampersand (&), combine those sets of ampersands into a single set (&&) and count the number of ampersands in it, then we have proved that 1 + 1 = 2.
no if 1 plus 1 equals 2 then 2 plus 2 equals 4.
Dividing all terms by 2 gives: 6x2+7x+2 = (2x+1)(3x+2) when factored
1 plus 44...... wow
4
10 + 1
50 plus 1
1^2 + 1^2 + 1^2 + 1^2 + 1^2 + 1^2 = 1 + 1 + 1 + 1 + 1 + 1 = 5
One plus one is two. It can be expressed mathematically as 1+1 = 2.
It equals 7
1/2 + 1/2 + 1/2 + 1/2 = 2 2 is four halves.
2 9 1 plus 1 is 2.
1+1 or 1 plus 1 is equal to 2.