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làm ưn
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bằng 76 tạ nhé mik tính đc là thế ko bt có đúng k,đúng cho mik kick nha mik đói sp lắm r đó plzzz
\(25x-36x+75x\)\(=6400\)
\(\left(25-36+75\right)\)\(x=6400\)
\(64x=6400\)
\(x=6400:64\)
\(x=100\)
Chúc em học tốt nha
X x (75 - 36 + 25) = 6400
X x 64 = 6400
X = 6400 : 64
X = 100