6000 + u = 30000 - 17000
6000 + u = 13000
u = 13000 - 6000
u = 7000
-------------------------------
v - 600 = 9600 - 8000
v - 600 = 1600
v = 1600 + 600
v = 2200
------------------------------
52000 - w = 48300 + 700
52000 - w = 49000
w = 52000 - 49000
w = 3000
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