Question

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Answer 1

Respuesta:

a)

1) (+2)+(-3)+7=

(-1)+7= 6

2) (+2)+(-3)+7=

(+2)+(+4)= 6

b)

1) (-5)+(-1)+(-9)=

(-6)+(-9)= -15

2) (-5)+(-1)+(-9)=

(-5)+(-10)= -15

c)

1) 11+(-3)+6=

8+6= 14

2) 11+(-3)+6=

11+3= 14

Answer 2

Respuesta:

es igual 15

Explicación paso a paso:

espero.qu te ayude kalamar