Answer:
(+8)-(+7) = (+8)+(-7) = 1
Step-by-step explanation:
The given statement ...
(+8)-(+7)=(+8)+(+7)=(+8)+(-7)
is false. The middle sum is not equal to the other two.
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In general, subtracting a number is the same as adding it opposite:
(+8)-(+7) = (+8)+(-7) = 1
