Question

11.Resolver a. {[3+2-09 - 7) + (3 + 4)]}= b. - {45 - 28 - (3-9) + (2+3) } = c. 15-{4+ [-5-4+(2-3) ] - 16 } = d. 13-12 +5+{-4-5+6+ ( 7 - 8+1)-6} =
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Answer 1

espero ayudarte........