Question

$21 + 36 \div (2 + 7) + 7 \times ( - 5)$
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Answer 1

$21 + 36 \div (2 + 7) + 7 \times ( - 5)$

Following BODMAS:-

$21 + 36 \div 9 + ( - 35)$

$21 + 36 \div 9 - 35$

$21 + 4 - 35$

$25 - 35$

$- 10$

Hence it is your required answer...Hope helps