To solve this equation for n, we must get n by itself. If you notice, n is being divided by 12. To undo division, you must multiply. So, to undo a division by 12, we must multiply both sides by 12.
[tex]4/7=n/12 \\ *12 \\ n=48/7 \\ or \\ n=6 and 6/7[/tex]
