7280-(x-1280)=1580
7280-x+1280=1580
8560-x=1580
x=8560-1580
x= 6980
440+y+1640=3140+640
2080+y=3780
x=3780-2080
y=1700
116125-(41125+x)24125
116125-41125-x=24125
75000-x=24125
x=75000-24125
x=50875
7280-(x-1280)=1580
7280-x+1280=1580
8560-x=1580
x=8560-1580
x= 6980
440+y+1640=3140+640
2080+y=3780
x=3780-2080
y=1700
116125-(41125+x)24125
116125-41125-x=24125
75000-x=24125
x=75000-24125
x=50875