Final answer:
When x equals 6, the expression 7·6−3x becomes 24, and 5(11−x) becomes 25, so the correct symbol to make the sentence true is (b) < (less than).
Step-by-step explanation:
The question involves evaluating the expressions 7 * 6 - 3x and 5 * (11 - x) for x = 6 and determining which symbol (=, >, or <) creates a true sentence. Substituting x = 6 into both expressions yields 42 - 18 = 24 for the first and 5 * (11 - 6) = 25 for the second. A comparison shows that 24 is less than 25. Therefore, the symbol that makes the sentence true is < (less than). This analysis demonstrates the application of algebraic substitution and comparison to discern the relationship between expressions, reinforcing fundamental principles in mathematical reasoning.