Liam is solving the equation 7x + 6 (x + 3) = 83. His steps are shown below. What mistakes did Liam make while solving?
7x + 6 (x + 3) = 83
7x + 6x + 3 = 83
13x + 3 = 83
13x + 3 - 3 = 83 - 3
13x = 80
13x/13 = 80/13
x = 6 2/13
A. Liam should have subtracted 13 from both sides of the equation rather than dividing.
B. Liam should have added 3 to both sides of the equation rather than subtracting.
C. Liam did everything correctly.
D. Liam forgot to distribute the 6 to the 3.