Question

a - [b - {a -(6-1) + 3a}]​

Answer 1

Answer:

-3a -b -5

Step-by-step explanation:

a - [b - {a -(6-1) + 3a}]​

=a - [b - {a - 5 + 3a}]​

=a - [b - {a+ 3a - 5}]​

=a - [b - {4a - 5}]​

=a - [b - 4a - 5]​

=a - b -4a - 5

= a-4a-b-5

=-3a -b -5

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Answer 2

Answer:

$a - (b - (a - (6 - 1) + 3a)) \\ = a - (b - (a - (5) + 3a)) \\ = a - (b - (a - 5 + 3a)) \\ = a - (b - (4a - 5)) \\ = a - (b - 4a + 5) \\ = a - b + 4a - 5 \\ = \underline{ \underline{5a - 5 - b}}$