perhaps you mean without using any other numbers? a lot depends on your constraints 9/9+9=10 which is 20 expressed in base 20 if you allow transformal mapping use Y=Nx20/27. Then each 9 transforms to 20/3 and Y1+Y2+Y3=20 There may be other transforms not involving constants that work. For instance, if we round our result to the nearest 10, ROUND [sqrt(9) x sqrt(9) + 9 ] gives 20. OR for some unspecified power N, we wish 9^n+9^n+9^n=20 using n~ 1.1582 solves the relation
99/9=11
5 X 3 =/= 5
101
A sentence formed using words and mathematical symbols which is either true or false but not both.
99/9 + 9 = 20
99 + (9 ÷ 9) = 100
99 + 9/9 = 100
symbols
It could be: 9+91-1 = 10
99/9=11
9x9=81 9 9=18 9 to the power 0=1 81 18 1=100
5 X 3 =/= 5
29-(-1) = 30
101
A sentence formed using words and mathematical symbols which is either true or false but not both.
Q = {a,b,c}
three.. 2, 22, 222