y – 478 = 896 + 439
y = 439 + 896 + 478
y = 1813
935 – x = 1063 – 375
– x = – 375 + 1063 – 935
-x = -247
x = 247
576 + a = 478 + 963
a = 963 + 478 – 576
a = 865
y – 478 = 896 + 439
y = 439 + 896 + 478
y = 1813
935 – x = 1063 – 375
– x = – 375 + 1063 – 935
-x = -247
x = 247
576 + a = 478 + 963
a = 963 + 478 – 576
a = 865