(y-35)+12=32y-35+12=32y-23=32y=32+23y=55
56-(x+12)=2456-x-12=2444-x=24-x=24-44-x=-20x=20
55-(x-15)=3055-x+15=3070-x=30-x=30-70-x=-40x=40
(y-35)+12=32
y-35+12=32
y-23=32
y=32+23
y=55
56-(x+12)=24
56-x-12=24
44-x=24
-x=24-44
-x=-20
x=20
55-(x-15)=30
55-x+15=30
70-x=30
-x=30-70
-x=-40
x=40