Ta có:\(\frac{2x+2}{3x-6}=\frac{2x-6}{3x-15}\)
\(\Rightarrow\frac{2\left(x+1\right)}{3\left(x-2\right)}=\frac{2\left(x-3\right)}{3\left(x-5\right)}\)
\(\Rightarrow\frac{2}{3}\cdot\frac{x+1}{x-2}=\frac{2}{3}\cdot\frac{x-3}{x-5}\)
\(\Rightarrow\frac{x+1}{x-2}=\frac{x-3}{x-5}\)
\(\Rightarrow\frac{x+1}{x-2}-1=\frac{x-3}{x-5}-1\)
\(\Rightarrow\frac{x+1-x+2}{x-2}=\frac{x-3-x+5}{x-5}\)
\(\Rightarrow\frac{3}{x-2}=\frac{2}{x-5}\)
\(\Rightarrow3\left(x-5\right)=2\left(x-2\right)\)
\(\Rightarrow3x-15=2x-4\)
\(\Rightarrow3x-2x=-4+15\)
\(\Rightarrow x=11\)
Đúng 0
Bình luận (0)
