Well.... first lets break this problem up. and work on the left side first soo we solve this ↓ 14/21.2 = 0.66 now lets plug in our values. The left side will just be replaced by 0.66 Soooo 0.66 = n/15 so this means we do the opposite on both sides of what n and 15 are doing In this case they are dividing so yes we are doing the opposite by multiply. sooooo 0.66 = n/15 ×15 = x 15 they cancel out on the right hand side and lets solver for the left side. 0.66 x 15 = 9.9 so that means n = 9.9 or we could round it and just say 10 n = 10 hope this helps:P
