Arestaurant manager wants to purchase 200 sets of dishes. one design costs $10 per set, while another costs $35 per set. if she wants to use her entire budget of $4250, how many of each design should be ordered

X = 10 per set dishes, and y = 35 per set dishes

x + y = 200x = 200 - y
10x + 35y = 4250

10(200 - y) + 35y = 4250
2000 - 10y + 35y = 4250
-10y + 35y = 4250 - 2000
25y = 2250
y = 2250/25
y = 90 <=== he got 90 of the $ 35 dishes

x + y = 200
x + 90 = 200
x = 200 - 90
x = 110 <=== he got 110 of the $ 10 dishes

Omg that is a big question and weird words and i’m only 5