Question

10x+3/12=1+6+8x/9

Answer 1

\(\dfrac{10x+3}{12}=\dfrac{1+6+8x}{9}=\dfrac{7+8x}{9}\)

\(\Leftrightarrow90x+27=84+96x\)

\(\Leftrightarrow-6x=57\)

\(\Leftrightarrow x=-\dfrac{57}{6}\)

Answer 2

\(10x+\dfrac{3}{12}=1+6+\dfrac{8x}{9}\)

\(\dfrac{10x}{1}+\dfrac{3}{12}=\dfrac{1}{1}+\dfrac{6}{1}+\dfrac{8x}{9}\)

\(\dfrac{10x.36}{1.36}+\dfrac{3.3}{12.3}=\dfrac{1.36}{1.36}+\dfrac{6.36}{1.36}+\dfrac{8x.4}{9.4}\)

khử mẫu : 

=>360x+9=36+216+32x

=>360x+9-36-216-32x=0

=>328x-243=0

=>328x=243

=>x=243/328