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WHRHS
Algebra 3
Name ________________________________________________ Date ____________
Unit 3: Logarithm Equations (Day 6)
Strategies to Solve Equations with Logs
Solve each equation.
1. log 2 ( x + 2 ) = log 2 5
2. log6 + log k = log18
3. log5 2x + log5 ( x - 4 ) = log5 48 - log 5 2
4. log x + log 4 = 1
WHRHS
Algebra 3
5. log 4 q - log 4 8 = 2
6. 2log y = log 4 + log ( y + 8 )
7. log ( n + 9 ) = log ( 4n )
8. log ( -5x ) = log (10 - 3x )
9. log ( -3m -1) = log ( -4m - 6 )
10. loga = log ( 4a - 9 )
WHRHS
Algebra 3
11. -4 log 3 ( -9m ) = -4
12. 7log 9 ( x + 8 ) = 7
13. -8 + log 9 ( m +1) = -8
14. -2log 3 ( a +1) = -8
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15. ln a 2 - 6a = ln (10 + 3a )
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16. log15 x 2 +13 = log15 ( -9x -1)
WHRHS
Algebra 3
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17. log19 x 2 +17 = log19 ( 8x + 2 )
18. log12 m 2 + 73 = log12 (17m + 3)
19. log25 x + log 25 ( 2x -1) = log25 15
20. 2log 3 x = log 3 16
21. log 2 ( x +1) = 4
22. log 2 5 - log 2 ( x +1) = 3
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