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Mathematics 8 Online
OpenStudy (anonymous):

How many solutions does the equation −3a + 3a + 6 = 7 have? A) One B) Two C) Infinitely many D) None

OpenStudy (anonymous):

D) None

OpenStudy (anonymous):

@ssssss

OpenStudy (anonymous):

would you like an explanation?

OpenStudy (anonymous):

yess

OpenStudy (anonymous):

ok so -3a + 3a cancel out correct ?

OpenStudy (anonymous):

leaving you with 6 = 7

OpenStudy (anonymous):

and that does not make sense right? so it has no solutions :)

OpenStudy (anonymous):

any questions?

OpenStudy (perl):

because 6=7 is a false statement, a 'contradiction'

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