You buy seven bags of gummy bears and 3 bag of chocolate and your total is $22 your friend buys a your friend buys three bags of gummy bears in it and one bag of the chocolate and her total is $8 what is the price of a bag of gummy bears and a bag of chocolate

Let the cost of 3 bags of chocolate be x and that of gummy be y. Thus to solve the question we form systems of equation as:
3x+7y=22i
x+3y=8ii
from ii
x=8-3yiii
substituting iii in i we get:
3(8-3y)+7y=22
24-9y+7y=22
-2y=-2
y=1
thus the value of x=8-3*1=5
thus the price of each bag of chocolate is $5 and that of gummy is $1