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52 times 2a = 104a
2a2
7
7a + 10 = 2a 7a = 2a -10 5a = -10 a = -2
If ( a = 3 ), then ( 2a = 2 \times 3 = 6 ). Therefore, ( 18 ) divided by ( 2a ) is ( 18 \div 6 = 3 ). Thus, the result is ( 3 ).