Question

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Answer 1

Respuesta:

2+(-1) = 2 - 1= 1

-3 + -4 =-7

+6 - 8 = -2

10 + 2 = 12

-7 + 2 = -5

-3 + -1 =-4

7 + 9 = 16

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Answer 2

Explicación paso a paso:

R1= 1 , R2=-7 , R3 =-2 , R4=12 , R5=-5 , R6=-4 , R7=16