Question

Please take a look at the picture. Please write your answer with an explanation.

Answer 1

Answer:

3

Step-by-step explanation:

Given question:

To simplify -

$14 + 16 \div {2}^{3} - (12 + {3}^{2} ) \div 7 + 2 \times ( - 5)$

Solution:

According to PEMDAS rule,

• [First parenthesis]

$= 14 + 16 \div {2}^{3} - (12 + 9 ) \div 7 + 2 \times ( - 5)$

$= 14 + 16 \div {2}^{3} - 21 \div 7 + 2 \times ( - 5)$

• [Then exponents]

$= 14 + 16 \div 8 - 21 \div 7 + 2 \times ( - 5)$

• [Then multiplication]

= 14 + 16 ÷ 8 - 21 ÷ 7 - 10

• [Then division]

= 14 + 2 - 3 - 10

• [Then addition]

= 16 - 13

• [Then subtraction]

= 3 (Ans)