1/3x + 6 = 9 Restating the problem x + 18 = 27 I multiplied by 3 x = 9 I subtracted 18 from 27
12
18
Equality
18 + (-6) = 12
few errors in your title: 2 plus 4 = 6 6 plus 9 = 15 10 plus 25 = 35 18 + 81 = 99
n + 6 = 18 n = 12
(4*18)+6 = 78
9x+6 = 7x+18 9x-7x = 18-6 2x = 12 x = 6
-6
12
-18