(y-137)+123=169
y – 137 + 123 = 169
y = 169 – 123 + 137
y = 183
(12+x)-12=40
12 + x – 12 = 40
x = 40 + 12 – 12
x = 40
841+(y-108)=909
841 + y – 108 = 909
y = 909 + 108 – 841
y = 176
(y-137)+123=169
y – 137 + 123 = 169
y = 169 – 123 + 137
y = 183
(12+x)-12=40
12 + x – 12 = 40
x = 40 + 12 – 12
x = 40
841+(y-108)=909
841 + y – 108 = 909
y = 909 + 108 – 841
y = 176