Solving Log Equations

Solve the equation for x

• 1.585

• 3.169

• 0.792

• 1.084

Tags

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.4

log₁₁ b = 3

• 1331

• 16

• 1000

• $\frac{1}{9}$

Tags

CCSS.HSF.BF.B.5

 $\log_9\left(r-8\right)\ =\ 2$  

• 55

•  $\frac{11}{6}$  

• 89

• 6

Tags

CCSS.HSF.BF.B.5

-10log₂ x + 8 = -12

• 8

• 12

• 1296

• 4

Tags

CCSS.HSA.CED.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

 $\log_6\ \left(x\ +\ 8\right)\ +\ \log_{6\ }\left(x\ +\ 9\right)\ =\ 1$  

• -11, -17

• -6, -17

• -6

• -11

Tags

CCSS.HSA.REI.A.1

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

 $\log_3\left(n^2+4n\right)=\log_3\left(35+2n\right)$  

• 5

• 5, -7

• -3, 5

• -7

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Solve:

log (x - 1) - log (x - 2) = log 5

• 7

• 4/9

• 9/4

• 1/7

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

 $\log_3\ \left(4x^2\ -\ 8\right)\ -\ \log_3\ 4\ =\ \log_{3\ }47$  

• 7, -7

• -2, 2

• 16

• -1, 1

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

Solve for x

• 1.631

• 2.262

• 1.734

• 1.465

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3