Question

7. 18 - 6 ÷ 2 + [(-5) * (-4) - {3 - (3 - 5)}]​

Answer 1

Answer:

we evaluate the given numerical expression as follows:

18 - [6 - {4 - (8 - 6 + 3)}]= 18 - [6 - {4 - (2 + 3)}]

=18 - [6 - {4 - (5)}]

=18 - [6 - {4 - 5}]

=18 - [6 - {-1}]

=18 - [6 + 1]

Note: Subtracting a negative number, e.g., -1, is the same as adding its opposite, e.g., positive 1 or 1, as shown in the previous step.

=18 - [7]

=18 - 7

= 11 is the result or final answer.

Answer 2

Answer:

30

Step-by-step explanation:

18-6/2+[(-5)*(-4)-{3-(3-5)}]  =18-6/2+[(-5)*(-4)-{3-(-2)}]

                                         =18-6/2+[(-5)*(-4)-{5}]

                                         =18-6/2+[20-{5}]

                                         =18-6/2+[15]

                                          =18-3+15  

                                           =15+15

                                         =   30