Respuesta:
13
Explicación paso a paso:
5-2{7-2-(1-9)-3+12}+4
5-2{7-2-8-3+12}+4
5-2{5-8-3+12}+4
5-2{-3-3+12}+4
5-2{-6+12}+4
5-2+6+4
3+6+4
9+4
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Verified answer
Respuesta:
13
Explicación paso a paso:
5-2{7-2-(1-9)-3+12}+4
5-2{7-2-8-3+12}+4
5-2{5-8-3+12}+4
5-2{-3-3+12}+4
5-2{-6+12}+4
5-2+6+4
3+6+4
9+4
13