SOLUTION: -2c-[(2a+3b)-2b]-[(6d+b)-3c]-(10d+9a)

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Question 1070844: -2c-[(2a+3b)-2b]-[(6d+b)-3c]-(10d+9a)
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Any exponents? No.
Work inside parentheses (if possible) first.

-2c-%282a%2B3b-2b%29-%286d%2Bb-3c%29-10d-9a
-2c-%282a%2Bb%29-%286d%2Bb-3c%29-10d-9a
-2c-2a-b-6d-b%2B3c-10d-9a
Combine like-terms
-2a-9a-b-b-2c%2B3c-6d-10d
-
-11a-2b%2Bc-16d---------result





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Wrong results below, due to mistake in sign of or in handling terms of b:
-2c-%28%282a%2B3b-2b%29-2b%29-%286d%2Bb-3c%29-%2810d%2B9a%29
-2c-%282a%2Bb-2b%29-6d-b%2B3c-10d-9a
-2c-%282a-b%29-6d-b%2B3c-10d-9a
-2c-2a%2Bb-6d-b%2B3c-10d-9a
Combine LIKE-terms.
-2a-9a%2Bb-b-2c%2B3c-6d-10d
-11a%2Bc-16d----------incorrect

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
-2c-[(2a+3b)-2b]-[(6d+b)-3c]-(10d+9a)
Correct simplified form: - 11a - 2b + c - 16d