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OpenStudy (anonymous):
expand the following expression and collect like terms. 3(5a+3) - 6a - 12 Why answer is 9a-3?
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OpenStudy (anonymous):
15a+9-6a-12 right?
OpenStudy (anonymous):
you distribute first remember multiplaction first in PEMDAS
OpenStudy (anonymous):
then combine like terms 15a-6a+9-12
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