姓名 ______________________日期 ____________得分 ____ / 12
解对数方程练习
解对数方程 · 1–12
解方程，并检验是否有增根。
1.log2 (5x − 34) = log2 (x − 2)
2.log10 (4x − 9) = log10 (x + 6)
3.log10 (6x − 13) = log10 (x + 2)
4.log2 (3x − 3) = log2 (x + 3)
5.log3 (6x − 11) = log3 (x − 1)
6.log5 (5x − 21) = log5 (x + 7)
7.log10 (5x − 16) = log10 (x + 8)
8.log2 (6x − 42) = log2 (x + 3)
9.log3 (2x − 2) = log3 (x + 4)
10.log10 (2x + 7) = log10 (x + 9)
11.log10 (6x − 40) = log10 (x + 10)
12.log5 (3x − 5) = log5 (x + 7)
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