5ab + 4a - 6b - 3a + 23ab - 12b + 13b
= 5ab + 23ab + 4a - 3a - 6b - 12b + 13b
= 28ab + a - 5b
Suerte :)
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5ab + 4a - 6b - 3a + 23ab - 12b + 13b
= 5ab + 23ab + 4a - 3a - 6b - 12b + 13b
= 28ab + a - 5b
Suerte :)