Question

resolva as expressões numéricas
1+5.[4.7+5.(15-4.5)]-3.(7-4)
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Answer 1

1+5×[4×7+5×(15-4×5)]-3×(7-4)

1+5×[28+5×(15-2)]-3×3

1+5×[28+5×(-5)]-9

1+5×[28-25]-9

1+5×3-9

1+15-9

16-9

7

Answer 2

Resposta:

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Explicação passo a passo: