Question

19-{+18×4 [4-2×5×7 (-1)]}÷10

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Answer 1

Resposta:=19−{72⋅[4−10⋅7⋅(−1)]}:10=

=19−{72⋅[4−70⋅(−1)]}:10=

=19−{72⋅[4−(−70)]}:10=

=19−{72⋅[74]}:10=

=19−{5328}:10=

=19−26645=

=−25695