All relational operators have equal precedence; they have a lower precedence than arithmetic operators. When you combine arithmetic and relational operators in a single expression, ESL performs the arithmetic first. For example, the expression:

(Debts + Taxes <= (Salary + Savings) * Inflation)

is true if the sum of Debts plus Taxes is less than or equal to the product of Inflation times the sum of Salary plus Savings.