Step-by-step explanation:
18(3x+1) = 54x+18
(6*9x) + (6*3) = 54x + 18
3(18x+2) = (6*9x)+(6*1)
(9*6x) - (9*2) = 18(3x-1)
54x+6 = (6*9x)+(6*1)
54x-18 = 18(3x-1)