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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 ( ) 15. ln a 2 - 6a = ln (10 + 3a ) ( ) 16. log15 x 2 +13 = log15 ( -9x -1) WHRHS Algebra 3 ( ) ( ) 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