Question
Solve the equation
x=2+4log3(10)
Alternative Form
x≈10.383613
Evaluate
3log10(3)×(x−2)=12
Divide both sides
3log10(3)3log10(3)×(x−2)=3log10(3)12
Divide the numbers
x−2=3log10(3)12
Cancel out the common factor 3
x−2=log10(3)4
Move the constant to the right side
x=log10(3)4+2
Add the numbers
More Steps

Evaluate
log10(3)4+2
Reduce fractions to a common denominator
log10(3)4+log10(3)2log10(3)
Write all numerators above the common denominator
log10(3)4+2log10(3)
Rewrite in terms of common logarithms
More Steps

Evaluate the logarithm
4+2log10(3)
Rewrite in terms of common logarithms
log10(10000)+2log10(3)
Calculate
log10(10000)+log10(32)
Use the logarithm product rule
log10(10000×32)
Evaluate the logarithm
log10(90000)
log10(3)log10(90000)
Use the logarithm base change rule
log3(90000)
x=log3(90000)
Solution
More Steps

Evaluate
log3(90000)
Use loga(x×y)=loga(x)+loga(y) to transform the expression
log3(9)+log3(10000)
Simplify the expression
More Steps

Evaluate
log3(9)
Write the number in exponential form with the base of 3
log3(32)
Use logaan=n to simplify the expression
2
2+log3(10000)
Simplify the expression
More Steps

Evaluate
log3(10000)
Write the number in exponential form with the base of 10
log3(104)
Use logabn=nlogab to simplify the expression
4log3(10)
2+4log3(10)
x=2+4log3(10)
Alternative Form
x≈10.383613
Show Solution
