Question

f. 53 - {52 +6 [9° + (5 x 23 – 4 x 13) - 9]}
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Answer 1

Respuesta:

53-{52+6×[9+(5×23-4×13)-9]}=

53-{52+6×[9+(115-52)-9]}=

53-{52+6×[9+63-9]}=

53-{52+6×[72-9]}=

53-{52+6×63}=

53-{52+378}=

53-430=

-377