Explanation
[tex]\frac{x-j}{k}+m=n[/tex]
Step 1
subtract m in both sides
[tex]\begin{gathered} \frac{x-j}{k}+m=n \\ \frac{x-j}{k}+m-m=n-m \\ \frac{x-j}{k}=n-m \end{gathered}[/tex]Step 2
multiply each side by k
[tex]\begin{gathered} \frac{x-j}{k}=n-m \\ \frac{x-j}{k}\cdot k=(n-m)\cdot k \\ x-j=(n-m)\cdot k \end{gathered}[/tex]Step 3
finally, add j in both sides
[tex]\begin{gathered} x-j=(n-m)\cdot k \\ x-j=nk-mk \\ x-j+j=nk-mk+j \\ x=nk-mk+j \end{gathered}[/tex]I hope this helps you
