The 40 banks and 130 outlets around Texas that comprised the now-dissolved First RepublicBank Corp. reopened Monday as NCNB Texas National Bank. First RepublicBank, the largest bank holding company in Texas, was declared insolvent Friday by the Federal Deposit Insurance Corp. The FDIC then announced its approval of the corporation's acquisition by NCNB of Charlotte, N.C., in a deal requiring about $240 million in cash from NCNB. The FDIC, which advanced First Republic $1 billion to stop a run by depositors last March, made another $2 billion in federal funds available for capitalization and said another $1 billion may be necessary. Most of the customers were conducting routine deposits and withdrawals Monday.