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weqwewe [10]
3 years ago
11

13 + {16 + 2 -[25 + 45) x 3] + 9}

Mathematics
1 answer:
Goshia [24]3 years ago
6 0

Answer: -170

Concept:

When encountering questions that require multiple steps of the calculation, it is suggested to follow the PEMDAS.

  • <u>P</u>arenthesis
  • <u>E</u>xponents
  • <u>M</u>ultiplication
  • <u>D</u>ivision
  • <u>A</u>ddition
  • <u>S</u>ubtraction

Solve:

**Disclaimer** I assume that it is supposed to be (25 + 45). If it was, then you may refer to my answer. If the ")" after 45 is just a typo, you may point it out and I will redo it.

<u>Given expression</u>

 13 + {16 + 2 - [(25 + 45) × 3] + 9}

<u>Do the parenthesis of the inner most</u>

=13 + {16 + 2 - [70 × 3] + 9}

=13 + {16 + 2 - 210 + 9}

<u>Do addition first, then subtraction</u>

=13 + {18 - 210 + 9}

=13 + {27 - 210}

=13 - 183

=-170

Hope this helps!! :)

Please let me know if you have any questions

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