Explicación paso a paso:
submarino
= - 45 + ( -50) + ( - 76)
= - (45 + 50 + 76)
= - 171
ascensor
-3 - ( -7)
= -3 + 7
=4
camara
-15 + ( -5)
= -(15+5)
= -20
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Verified answer
Explicación paso a paso:
submarino
= - 45 + ( -50) + ( - 76)
= - (45 + 50 + 76)
= - 171
ascensor
-3 - ( -7)
= -3 + 7
=4
camara
-15 + ( -5)
= -(15+5)
= -20