Explicación paso a paso:
a) (-5) - (+2) = -7
b) (+6) - (+5) = +1
c) (-1) - (-4) = +3
d) (+3) - (-2) = +5
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Explicación paso a paso:
a) (-5) - (+2) = -7
b) (+6) - (+5) = +1
c) (-1) - (-4) = +3
d) (+3) - (-2) = +5