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Mathematics 17 Online
OpenStudy (anonymous):

solve -[(a+b)-(b-a)] did i do this right?

OpenStudy (anonymous):

i've got -2a

OpenStudy (anonymous):

@zepdrix

zepdrix (zepdrix):

So you distributed the negative to each term in the second brackets, your b's cancelled out. got 2a, then applied the outer negative? Yay good job! \c:/

OpenStudy (anonymous):

thanks

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