The phrase "subtract from" is commonly used in mathematical and financial contexts, but there are plenty of alternative phrases and words that can be used to convey the same meaning. Some synonyms for "subtract from" include "decrease," "reduce," "diminish," "lessen," "minimize," "detract," "take away," "withdraw," "subside," "abate," "dwindle," and "cut back." Each of these synonyms has its own nuances and connotations, so choosing the right word for a particular context depends on the desired emphasis and tone of the message. Experimenting with different synonyms can also help to add variety and interest to writing, making it more engaging for readers.