Question

4/x+1×5/x-1=6/x-1×7/x+1​

Answer 1

$\frac{ 4 }{ x } +1 \times \frac{ 5 }{ x } -1= \frac{ 6 }{ x } -1 \times \frac{ 7 }{ x } +1 \\ = 4+1\times 5+x\left(-1\right)=x\left(\frac{6}{x}-1\times \left(\frac{7}{x}\right)\right)+x \\ = 4+5+x\left(-1\right)=x\left(\frac{6}{x}-1\times \left(\frac{7}{x}\right)\right)+x \\ = x=5$