題目 題型:選答,填空 難度:★ 17.8萬熱度
Supposeaisaninteger,solutionstotheequationax+5=4x+1arepositi
Suppose a is an integer, solutions to the equation ax+5=4x+1 are positive integers. Then the number of a is().
(A)2
(B)3
(C)4
(D)5
(英漢小詞典:positive正的)
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