Question

Resolver eliminando signos de agrupación

1. {20-6(10-2)+12-6-3(-3-6)+19}

2. 7-23-(2-7)5-(49+78-96)-5(2-6)

Answer 1

Respuesta:

1. 24

2. -2

Explicación paso a paso:

{20-6(10-2)+12-6-3(-3-6)+19}=

{20-6(8)+12-6-3(-9)+19}=

{20-48+12-6+27+19}=

{20+12+27+19-48-6}=

{20+12+27+19-48-6}=

{78-54}= 24

7-23-(2-7)5-(49+78-96)-5(2-6)=

7-23-(-5)5-(127-96)-5(-4)=

7-23-(-25)-(31)+(20)=

7-23+25-31+20=

7+25+20-23-31=

52-54= -2