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Kiko34
@Kiko34
December 2019
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Resolva as expressões: a. -13-(9-23)+(-42-35)-(-8+15). b. -4+6+{-25+21+[-2+(-3+5)]}.
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lelunardi1
a. -13-(9-23)+(-42-35)-(-8+15) =
-13-( -14 )+( -77 )-( +7 ) =
-13 +14 -77 -7 =
+14 -97 =
-83
b. -4+6+{-25+21+[-2+(-3+5)]} =
+2+{-25+21+[-2+( +2 )]} =
+2+{ -4 +[-2 +2 ] } =
+2 -4 =
-2
2 votes
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-13-( -14 )+( -77 )-( +7 ) =
-13 +14 -77 -7 =
+14 -97 =
-83
b. -4+6+{-25+21+[-2+(-3+5)]} =
+2+{-25+21+[-2+( +2 )]} =
+2+{ -4 +[-2 +2 ] } =
+2 -4 =
-2