Question

resolva as equações
$- 21 + ( - 15) \div ( + 3) - 7 \times ( + 2) - 13$
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Answer 1

-21 + (-15)÷(+3) -7*(+2)-13 =

−21−15÷3−7*2−13  =

−21−5−7*2−13  =

−21−5−14−13  =

-53.