Question

-{12-3-[-5·(19-(-7)+8]-(-9·7)}+1=

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Answer 1

Explicación paso a paso:

-{12-3[-5(19-(-7)+8]-(-9.7)}+1

-{12-3[-5(19+7)+8]-(-9.7)}+1

-{12-3[-5+26+8]-(-63)}+1

-{12-3[-5+32]-(-63)}+1

-{12-3[+27]+63}+1

-{12-3+27+63}+1

-{102-3}+1

-{99}+1

-99+1

-98