((x * 5) >= 10) && ((y - 6) <= 20)

Operator Precedence:
    Logical NOT    !
     Exponentiation    **
     Multiplication and division    *, /, %
     Addition and subtraction    +, -
     Comparison    <=, >=, >, <
     Equality    ===, !==, ==, !=
     Logical AND    &&    
    Logical OR    ||