oliviachurnoski
oliviachurnoski
08-04-2015
Mathematics
contestada
What is 19a - 7 - 3a +12a
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agness
agness
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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