Question

Giải các phương trình sau: \(\frac{7x-2^{ }}{6}\) + \(2x\) =\(\frac{6-x}{8}\)

Answer 1

Ta có: \(\frac{7x-2}{6}+2x=\frac{6-x}{8}\)

\(\Leftrightarrow\frac{7x-2}{6}+2x-\frac{6-x}{8}=0\)

MSC=24

\(\Leftrightarrow\frac{28x-8}{24}+\frac{48x}{24}-\frac{18-3x}{24}=0\)

\(\Leftrightarrow\frac{28x-8+48x-18+3x}{24}=0\)

\(\Leftrightarrow\frac{79x-26}{24}=0\)

\(\Leftrightarrow79x-26=0\Leftrightarrow79x=26\Leftrightarrow x=\frac{26}{79}\)

Vậy: \(x=\frac{26}{79}\)

Answer 2

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Answer 3

https://i.imgur.com/ZRtECPi.jpg

Answer 4