Respuesta :
commutative says a+b=b+a or ab=ba so we just rearange the addition or multiplication
it could be
(4+7)*3=(7+4)*3 or
(4+7)*3=3*(4+7)
answer is 2nd option
it could be
(4+7)*3=(7+4)*3 or
(4+7)*3=3*(4+7)
answer is 2nd option