Answer:
A = 6
Step-by-step explanation: 4(3A - 4) = 56 (Distribute/multiply the 4 to everything inside the parentheses)
12A - 16 = 56 (Add 16 to both sides to get A on one side)
12A = 72 (Divide both sides by 12 to get A by itself)
A = 6
-Hope this helps<3