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Mathematics 18 Online
OpenStudy (anonymous):

Simplify: (-3a-4b)-(-9a-4b) 6a2 6a 6a2+6b2 6a+6b

jimthompson5910 (jim_thompson5910):

you got what?

jimthompson5910 (jim_thompson5910):

if you're completely stuck, then you can distribute to go from (-3a-4b)-(-9a-4b) to -3a-4b+9a+4b now you just need to combine like terms

OpenStudy (anonymous):

I got d

jimthompson5910 (jim_thompson5910):

-3a+9a is 6a

jimthompson5910 (jim_thompson5910):

but -4b+4b isn't 6b

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