Respuesta :

zak66149

Answer:

a. -10 + 8

b. -20 +10

c. -20 + 20

d. -20 +5

Step-by-step explanation:

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LadyStrange

a) 8 + ( -10 ) = -2

b) 5 + ( -15 ) = -10

c) 1 + ( -1 ) = 0

d) 5 + ( -20 ) = -15