28 + 6 = 34.
3 + 6 + 9 + 22 + 28 + 1 + 6 + 5 = 80
28
36 + 42 - 6 + 28 - 43 + 81 - 6 = 132
58
28*6+2= 170 Thank you
-2x + 6 + 22 = -2x + 28
89
x=-5
x = 5
1 + 2 + 3 + 4 + 6 + 7 + 12 + 14 + 21 + 28 + 42 = 140
50-2 x10.5-6 plus 2.5 plus 2.5 is equal to 28.
51. Calculators are awesome by the way!