Question

-3,1+(-4,8+3,6)-(1,4-3)=​

Answer 1

Resposta:

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Explicação passo-a-passo:

$\tt \: basta \: calcularmos \: \\ \tt \: na \:ordem . \\ \\ \rm \: temos :$

$\rm \: - 3.1 + ( - 4.8 + 3.6) - \\ \rm \: ( 1.4 - 3) = - 2.7$

$\rm \: calculando : \\ \\ \rm \: retiramos \: os \: parênteses \: \\ ( - a) = - a \: \\ \rm \: sendo : \\ \rm \: - 3.1 - 4.8 + 3.6 - (1.4 - 3) \\ \\ \rm \: tendo : \\ \rm \: - (1.4 - 3) = 1.6 \\ \\ \rm \: no \: qual : \\ \rm \: - 3.1 - 4.8 + 3.6 + 1.6 \\ \\ \rm \: agora \: basta \: somarmos \\ \rm \: o \: que \: obtemos : \\ \rm \: - 3.1 - 4.8 + 3.6 + \\ \rm \: 1.6 = - 2.7 \\ \\ \tt \: no \: qual \: temos \: a \: resposta \: \\ \tt \: correta \: de \: - 2.7$

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