To subtract vectors, you simply have to subtract correspondent coordinates.
So, if you have

the subtraction is simply

So, in your case, we have

Answer:I am a little confused by your wording but I am assuming the question is 12 times what is 26 greater than 6
The answer would be 2.66666666667 which sound incorrect but multiply by 12 and you get 32 and 6 + 26= 32
Step-by-step explanation:
You need one equation for the physical nickels and dimes, which total to 21:
n+d=21
Secondly, you need one equation for the numerical value of those nickels and dimes. We know nickels are worth $0.05 and dime are worth $0.10:
.05n+.1d=1.70