The result obtain from the equation 4 plus -1 -21 is -18.
30. 2+3+5=10, 4+6=10, and 2+4+1+1+2=10.
no if 1 plus 1 equals 2 then 2 plus 2 equals 4.
26
-5-1 plus 4 plus 2-6 plus 4 is equal to -2
4
1+2+4 = 7
43
The mater is that if you do 1+1=2 then just add the sum with its self, so you have 2+2=4 and 4 is the answer
It is 77
25
1/2 plus 1/2 plus 1/4 plus 3/4 is two.
(10+9)+(1−1)+(2−2)+(3−1)+(4−4) = 21This is the same equation rewritten: (10+9)+(3−1) = 21This can be done as 1-1, 2-2, 4-4 cancel themselves out.