Logarithmic equation

Solve equation:

log33(3x + 21) = 0

Result

x =  -6.67

Solution:

Solution in text x =







Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




To solve this example are needed these knowledge from mathematics:

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

Next similar examples:

  1. Exponential equation
    exp Solve exponential equation (in real numbers): 98x-2=9
  2. Coordinate
    exp_ln Determine missing coordinate of the point M [x, 120] of the graph of the function f bv rule: y = 5x
  3. Intercept with axis
    log_10 F(x)=log(x+4)-2, what is the x intercept
  4. Powers 3
    exp_4 2 to the power of n divided by 4 to the power of -3 equal 4. What is the vaule of n?
  5. Radioactivity
    radioactivity After 548 hours decreases the activity of a radioactive substance to 1/9 of the initial value. What is the half-life of the substance?
  6. Reciprocal equation 2
    parabola2 Solve this equation: x + 5/x - 6 = 4/11
  7. Solve 3
    eq2_4 Solve quadratic equation: (6n+1) (4n-1) = 3n2
  8. Equation
    function Eequation f(x) = 0 has roots x1 = 64, x2 = 100, x3 = 25, x4 = 49. How many roots have equation f(x2) = 0 ?
  9. Asymptote
    asymptote What is the vertical asymptote of ?
  10. Ball game
    lopta_3 Richard, Denis and Denise together scored 932 goals. Denis scored 4 goals over Denise but Denis scored 24 goals less than Richard. Determine the number of goals for each player.
  11. Linear imaginary equation
    cplx_function Given that ? "this is z star" Find the value of the complex number z.
  12. Cinema 4
    cinema_2 In cinema are 1656 seats and in the last row are 105 seats , in each next row 3 seats less. How many are the total rows in cinema?
  13. Insert into GP
    archimedes_1 Between numbers 5 and 640 insert as many numbers to form geometric progression so sum of the numbers you entered will be 630. How many numbers you must insert?
  14. Logarithm
    log_hat Determine the number whose decimal logarithm is -3.8.
  15. Is complex
    cplx Are these numbers 2i, 4i, 2i + 1, 8i, 2i + 3, 4 + 7i, 8i, 8i + 4, 5i, 6i, 3i complex?
  16. Theorem prove
    thales_1 We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
  17. Trinity
    trojka How many different triads can be selected from the group 43 students?