commutative law of matrix subtraction is / » Mathematics for Economic Analysis 1 solved MCQs / By admin Question: commutative law of matrix subtraction is A. a+b=b+a B. a-b=b-a C. a-b= -b+a D. a+b=a-b Answer» c. a-b= -b+a Note: The above multiple-choice question is for all general and Competitive Exams in India.