JjoaoVvictor JjoaoVvictor 01-05-2024 Matemática Respondido 7x+2x-6x= 20xy-17xy-5xy= 2ab+1,5ab-2,3ab= 3,1xy+4,5xy-2,7xy= 10bc-12bc+7bc-3bc 1,1ab-3,5ab-0,9ab+2,8ab= 1/3xy-5/6xy+4/9xy=