Solving Log Equations

 $\log_9\left(r-8\right)\ =\ 2$  

• 55

•  $\frac{11}{6}$  

• 89

• 6

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Solve

• A
• B
• C
• D

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

 $\log\ \left(9-x\right)=\log\ \left(2x-6\right)$  

• 5

• -11

•  $\frac{18}{19}$  

• -4

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

Solve

• A
• B
• C
• D

Tags

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

 $7\log_5\ \left(-6v\ -\ 1\right)\ =\ 0$  

•  $-\frac{2053}{5}$  

• 1

•  $-\frac{1}{3}$  

• 0

Tags

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

Solve for x.
 $-6\log_{12}\left(x-5\right)=-6$  

• -1

• -864

• 2

• 17

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

 $\log_4\ 7\ +\ \log_{4\ }\ \left(x\ -\ 2\right)\ =\ \log_4\ 62$  

•  $\frac{76}{7}$  

•  $-\frac{19}{6}$  

• 42

•  $\frac{10}{3}$  

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

Solve for x.
 $\log_{20}\left(2x-100\right)=3$  

• 80

• 1023

• 4050

• No solution

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

 $\log_4\ 6\ +\ \log_4\ x\ =\ 2$  

•  $\frac{32}{5}$  

• 32

•  $\frac{8}{3}$  

• 8

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Solve for x.
 $\log_3\left(7\right)+\log_3\left(2x\right)=2$  

•  $-\frac{9}{8}$  

•  $\frac{13}{2}$  

•  $\frac{9}{14}$  

•  $\frac{9}{40}$  

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4