957-(t+336)=428
957 – t – 336 = 428
– t = 428 + 336 – 957
-t = -193
t = 193
325-(a-617)=219
325 – a + 617 = 219
– a = 219 – 617 – 325
-a = -723
a = 723
468-(259-c)=382
468 – 259 + c = 382
c = 382 + 259 – 468
c = 173
957-(t+336)=428
957 – t – 336 = 428
– t = 428 + 336 – 957
-t = -193
t = 193
325-(a-617)=219
325 – a + 617 = 219
– a = 219 – 617 – 325
-a = -723
a = 723
468-(259-c)=382
468 – 259 + c = 382
c = 382 + 259 – 468
c = 173