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20 questions
log (9−x)=log (2x−6)
5
-11
1918
-4
log3(n2+4n)=log3(35+2n)
5
5, -7
-3, 5
-7
log11 b = 3
1331
16
1000
91
6 + log2 x = 6
9
101
1
121
-10log2 x + 8 = -12
8
12
1296
4
log9(r−8) = 2
55
611
89
6
−8 + log6 (x + 1) = −7
5
6
−91000
124
9 + 10log8 (−8x) = 19
−75
49246
-1
−427
log5 (8−10n) = −2
250199
54099
384577
−1031
7log5 (−6v − 1) = 0
−52053
1
−31
0
5log6 (−5k − 9) + 2 = 17
−96571
-45
51
103
log4 6 + log4 x = 2
532
32
38
8
log3 x + log3 4 = 4
227
23
79
481
log4 7 + log4 (x − 2) = log4 62
776
−619
42
310
log4 6 − log4 4x = log4 63
No solution
31
−165
421
log7 (x + 4) − log7 x = log7 33
81
−760
No solution
768
log6 (x + 8) + log6 (x + 9) = 1
-11, -17
-6, -17
-6
-11
log9 3 + log9 (5x2 + 4) = log9 14
1530, −1530
165, −165
18
0
log3 (4x2 − 8) − log3 4 = log3 47
7, -7
-2, 2
16
-1, 1
log7 (x + 3) − log7 x = 1
89
No solution
319
21
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