Question

Evaluate
-11-[-6- {3-5(8÷4-1)}]

Answer 1

$\bf \: - 11 - ( - 6 - (3 - 5(8 \div 4 - 1))) \\ \\ = - 11 - ( - 6 - (3 - 5( 2 - 1))) \\ \\ = - 11 - ( - 6 - (3 - 5(1))) \\ \\ = - 11 - ( - 6 - ( - 2)) \\ \\ = - 11 - ( - 6 + 2)) \\ \\ = - 11 - ( - 4) \\ \\ = - 11 + 4 \\ \\ \bf \: = - 7$

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