Question

Can someone please help me with this ( -1) + (+8)

Answer 1

7

it’s kind of like 8-1 but it’s 8+(-1)

Answer 2

(-1) + (+8) = 7

Explanation:

(+)(+) = (+)

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

(-)(-) = (+)

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

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