Question

-128 +24 -30
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40 40 40

Answer 1

Resposta:

$- \frac{67}{20}$

Explicação passo-a-passo:

$- \frac{ 128}{40} + \frac{24}{40} - \frac{30}{40} \\ \\ \frac{ - 128 + 24 - 30}{40} \\ \\ \frac{ - 134}{40} \\ \\ - \frac{134}{40} \\ \\ \frac{134 \div 2}{40 \div 2} \\ \\ \frac{67}{20} \\ \\ - \frac{67}{20}$

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