Question

12-[{15-3(7-5)-4}÷5]​

Answer 1

$12 - (15 - 3(7 - 5) - 4 \div 5$

$12 - (12 \times 2) - 4 \div 5$

$12 - 24 - 4 \div 5$

$- 16 \div 5$

$= - 12.8$

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