Given :
Liam has a bag of b beads.
He gives 20 beads to his sister.
He then makes 4 necklaces with the same of beads on each necklace using all of the remaining beads.
To Find :
Write an expression that represents the number of beads on each necklace.
Solution :
Number of necklace remains after giving 20 beads to his sister is ( b - 20 ).
Number of beads on each necklace using all of the remaining beads is :
![N=(b-20)/(4)](https://img.qammunity.org/2021/formulas/mathematics/high-school/gzo6fl6rly033yfgb3eu27oyk99bsq03yo.png)
Hence, this is the required solution.