Hola! :3
Resolvemos:
8abc-(9-3abc)-(5abc-21)=¿?
8abc-9+3abc-5abc+21=¿?
(8+3-5)abc+21-9=¿?
6abc+12=¿?
6(abc+2)=¿?
Espero haberte ayudado :D
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Verified answer
Hola! :3
Resolvemos:
8abc-(9-3abc)-(5abc-21)=¿?
8abc-9+3abc-5abc+21=¿?
(8+3-5)abc+21-9=¿?
6abc+12=¿?
6(abc+2)=¿?
Espero haberte ayudado :D