# Logarithmic equation

Solve equation:

log13(7x + 12) = 0

x =  -1.57

### Step-by-step explanation:

Did you find an error or inaccuracy? Feel free to write us. Thank you!

Tips to related online calculators
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

## Related math problems and questions:

• Solve 2
Solve integer equation: a +b+c =30 a, b, c = can be odd natural number from this set (1,3,5,7,9,11,13,15)
• Equation
Eequation f(x) = 0 has roots x1 = 64, x2 = 100, x3 = 25, x4 = 49. How many roots have equation f(x2) = 0 ?
• Log
Calculate value of expression log |3 +7i +5i2| .
Solve pure quadratic equation -5x2 +10 = 0.
• Exponential equation
Solve exponential equation (in real numbers): 98x-2=9
• Subtract 4
Subtract the following decimals. a. 0.98 - 0.053 b. 0.67 - 0.4 c. 0.3 - 0.002 d. 3.2 - .789 e. 6.53 - 4.298 f. 6 - 4.32 g. 7 - 3.574 h. 4.83 - 1.8 i. 3.7 - 1.8 j. 16.17 - 11.632
• Exponential equation
Solve for x: (4^x):0,5=2/64.
• Intercept with axis
F(x)=log(x+4)-2, what is the x intercept
• Log
Worker cut his thick log to 6 pieces for 30 min. How long he cut log to 12 pieces?
• Number ratio
Calculate two positive numbers that its ratio is 6:6 and difference was 0.
• Sum-log
The sum of two numbers is 32, the sum of their logarithms (base 10) is 2.2. Determine these numbers.