1B. Dan cut 18 pieces of sandwiches from a single loaf of bread. Each piece
was of a foot long. What was the shortest length the loaf could have been?
(A) 17 feet
(C) 90 feet
(B) 18 feet
(D) 10 feet

You are solving for x here. To solve for x you need to isolate it onto one side of the equation. First multiply -4 into (-6x - 3) to get 24x + 12. Now that you have a simplified equation on both sides, subtract 12 from both sides to get 24x = 0. Because anything multiplied by 0 equals 0, x = 0.