Answer: Possible Interpretations and Solutions:1. If it represents a sum of terms:If the expression is meant to be: (2/3) + a + (5a/6) + (6a/3), then we can simplify as follows:Combine like terms: The terms with 'a' are like terms. We have a + (5a/6) + 2a = a + (5/6)a + 2a = (1 + 5/6 + 2)a = (18/6)a = 3aSimplify the constant term: The constant term is 2/3.Final expression: The simplified expression is (2/3) + 3a2. If it represents a single fraction:If the expression is meant to be a single fraction, such as (2/3 + a) / (5a + 6a + 3), it requires further clarification on the intended numerator and denominator. More parentheses are needed to show the order of operations.3. If it represents a system of equations:If the expression is part of a larger system of equations, additional information is needed.Step-by-step explanation: : The original input is ambiguous. To solve for 'a', a complete and correctly formatted equation or expression is necessary. The provided text needs to be clarified to indicate the intended mathematical operations and relationships between the terms.