Answer :
[tex]4x+3x+5x=156\\
12x=156\\
x=13\\\\
4x=4\cdot13=52 \leftarrow \hbox{ cashews}\\
3x=3\cdot13=39 \leftarrow \hbox{ peanuts}\\\\
52-39=\boxed{13}[/tex]
So,
4x + 3x + 5x= 156
12x= 156
x= 13
4x = 4 times 13= 52 Cashews
3x= 3 times 13= 39 Peanuts
52-32= 13
Hope this Helps!!!