Question

d)50-3×{7+8÷4-[20-3×(9-5)]}=​

Answer 1

Resposta:

$- 19$

Explicação passo-a-passo:

$50 - 3(7 + 8 \div 4 \times (20 - 3(9 - 5))) \\ 50 - 3(7 + 8 \div 4 \times (20 - 3 \times 4)) \\ 50 - 3(7 + 8 \div 4 \times (20 - 12)) \\ 50 - 3(7 + 8 \div 4) \\ 50 - 3(7 + 16) \\ 50 - 3 \times 23 \\ 50 - 69 \\ - 19$

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