Asked by Ryan

-2a - 3(b - 4a)
Answered by carl
-2a-3(b-4a) .

-2b-3b-12a

10a-3b
Answered by PsyDAG
-2a - 3(b - 4a) =

-2a - 3b <B>+</B> 12a (minus times minus = positive)

It is still 10a - 3b, but the middle step of carl had a typo.
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