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To operate the above given numerical expression, first we have to follow the order of operations.

According to it, the parenthesis comes first and thus it should be first sorted out!

This implies: 4+ 3 – 5– 6.

(Taking from left, since negative times negative is positive and positive times negative is negative)

We should now start from left and calculate accordingly: 4+ 3 – 5 – 6 ==>7 – 5 – 6==> 2 – 6 = -4.

Therefore the value of the given expression is -4.

To operate the above given numerical expression, first we have to follow the order of operations.

According to it, the parenthesis comes first and thus it should be first sorted out!

This implies: 10+ 4– 6 + 1.

(Taking from left, since positive times negative is negativeand negative times negative is positive)

We should now start from left and calculate accordingly: 10+ 4– 6 + 1==>14 – 6 + 1==> 8 + 1==> 9.

Therefore the value of the given expression is 9.