Respuesta:
A) 9
B) - 9
Explicación paso a paso:
A)
5-(-2-(-1+5-6)-7)-3
=5-(-2-(-2)-7)-3
=5-(-2+2-7)-3
=5-(-7)-3
=5+7-3
=12-3
=9
B)
(-9-11-(-18+21-3)+7)-(-18+21-(3-11+15))
=(-9-11-(0)+7)-(-18+21-(7))
=(-9-11+7)-(-18+21-7)
=(-13)-(-4)
= - 13+4
= - 9
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Verified answer
Respuesta:
A) 9
B) - 9
Explicación paso a paso:
A)
5-(-2-(-1+5-6)-7)-3
=5-(-2-(-2)-7)-3
=5-(-2+2-7)-3
=5-(-7)-3
=5+7-3
=12-3
=9
B)
(-9-11-(-18+21-3)+7)-(-18+21-(3-11+15))
=(-9-11-(0)+7)-(-18+21-(7))
=(-9-11+7)-(-18+21-7)
=(-13)-(-4)
= - 13+4
= - 9