oliviachurnoski oliviachurnoski

08-04-2015
Mathematics

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What is 19a - 7 - 3a +12a

Respuesta :

08-04-2015

28a - 7 you just combine the numbers with the a together then the one without the a can stay the way it is because it doesnt have an a next to it but if there was another number without any letters next to it u would add it to 7

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