This rule does not only disallow the addition of elements with opposite balance attributes,-they must be subtracted -, it also defines whether the value contained by an element should be positive or negative.
It also defines whether the value contained by an element should be positive or negative. This rule does not allow the addition of elements with opposite balance attributes (they must be subtracted).
This rule does not allow the addition of elements with opposite balance attributes (they must be subtracted). It also defines whether the value contained by an element should be positive or negative.
This rule does not allow the addition of elements with opposite balance attributes (they must be subtracted). It also defines whether the value contained by an element should be positive or negative.