Question

3- {+ 30 : 5- [-7 × ( + 5 - 2 )+3 ] : + 6}
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Answer 1

3 - { + 30:5 - [ - 7 × (+ 5 - 2) + 3] : + 6}

3 - { + 6 - [ -7 × (3) + 3] : + 6}

3 - { + 6 - [ - 21 +3] : + 6}

3 - { + 6 - [ - 18] : +6}

3 - { + 6 - [- 3] }

3 - { + 6 + 3}

3 - { + 9}

3 - 9

- 6