Question

78 + {[(–10) : 2] . 5 - [– 27 : 3 + (– 4) ] .(-6) + 20} =

pfvr preciso disso hj

Answer 1

Resposta:

-5

Explicação passo a passo:

78 + {[(–10) : 2] . 5 - [– 27 : 3 + (– 4) ] .(-6) + 20}

$78-5\cdot \:5-\left[-27\div \:3+\left(-4\right)\right]\left(-6\right)+20$

$78-25-\left[-27\div \:3+\left(-4\right)\right]\left(-6\right)+20$

$78-25-78+20$

$-5$

Answer 2

= 78 + {[(- 10) ÷ 2] . 5 - [- 27 ÷ 3 + (- 4)] . (- 6) + 20}

= 78 + {[- 5] . 5 - [- 9 - 4] . (- 6) + 20}

= 78 + {- 25 - [- 13] . (- 6) + 20}

= 78 + {- 25 + 13 . (- 6) + 20}

= 78 + {- 25 - 78 + 20}

= 78 + {- 103 + 20}

= 78 + {- 83}

= 78 - 83

= - 5

att. yrz