Triangle weigh 6, how much does square weigh, this is a balanced hanger

Answer:
9
Step-by-step explanation:
set triangles as x and squares as y
x+3y=4x+y, now plug in 6 for each triangle
6+3y=4(6)+y, solve for the weight of the squares
3y-y=24-6
2y=18
y=9, each sqaure weighs 9 units