Respuesta :

gmany

Answer:

(-1) + (+8) = 7

Step-by-step explanation:

(+)(+) = (+)

(-)(+) = (+)(-) = (-)

(-)(-) = (+)

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(-1) + (+8)= (-1) + 8      use the commutative property a + b = b + a

= 8 + (-1) = 8 - 1 = 7

uwucoco1138

Answer:

7

it’s kind of like 8-1 but it’s 8+(-1)

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