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\(80-\left(x-23\right)=56\)
\(x-23=80-56\)
\(x-23=24\)
\(x=24+23\)
\(x=47\)
\(67-\left(x-30\right)=1\)
\(x-30=67-1\)
\(x-30=66\)
\(x=66+30\)
\(x=96\)
\(56-4+78\times8\)
\(=52+624\)
\(=676\)
~~~~~~~~~~~ai đi ngang qua nhớ để lại k ~~~~~~~~~~~~~
~~~~~~~~~~~~ Chúc bạn sớm kiếm được nhiều điểm hỏi đáp ~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~ Và chúc các bạn trả lời câu hỏi này kiếm được nhiều k hơn ~~~~~~~~~~~~

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