R=B+25
NB=3B
R+B+NB=435
b+25 + b+ 3b=425
5b=400
b=80
can you solve it from here?
bobpursley, I am confused to the equations that you have just posted. However, this is what I figured out but I'm not if it's correct.
((25+R)-B)+3N=435
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