Explanation:
DBC = TBC + DBT
DBT = DBC - TBC
DBT = 25X +7 -( 12X + 5 )
DBT = 25X + 7 - 12X -5
DBT = 13 X + 2
TBC = 12x + 5
DBC = 25x + 7
ur question is missing an information to find x
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