\(\frac{x-5}{73}+\frac{x-9}{142}=\frac{x-5}{136}+\frac{x-9}{71}\Leftrightarrow142x-710+73x-657=71x-355+136x-1224\)
\(\Leftrightarrow215x-1367=207x-1579\Leftrightarrow8x=212\Leftrightarrow x=26,5\)
\(\frac{x-5}{73}+\frac{x-9}{142}=\frac{x-5}{146}+\frac{x-9}{71}\)
\(\Rightarrow\left(\frac{x-5}{73}-2\right)+\left(\frac{x-9}{142}-1\right)=\left(\frac{x-5}{146}-1\right)+\left(\frac{x-9}{71}-2\right)\)
\(\Rightarrow\frac{x-151}{73}+\frac{x-151}{142}=\frac{x-151}{146}+\frac{x-151}{71}\)
\(\Rightarrow\left(x-151\right)\left(\frac{1}{73}+\frac{1}{142}-\frac{1}{146}-\frac{1}{71}\right)=0\)
\(\Rightarrow x-151=0\Rightarrow x=151\)
