jennyishungryp7k91j
jennyishungryp7k91j jennyishungryp7k91j
  • 12-03-2019
  • Mathematics
contestada

How do I do this ? I don’t understand logarithm

How do I do this I dont understand logarithm class=

Respuesta :

MrBillDoesMath MrBillDoesMath
  • 12-03-2019

Hello from MrBillDoesMath!

Answer:

x = 19

Discussion:

Both sides are logarithms to the same base, namely 20 , which implies the expressions in x (what we are taking logarithms of) must be equal. So we need to solve

4x - 10 = 3x + 9              => subtract 3x from both sides

4x-3x - 10 = 9                 => add 10 to both sides

x = 9 + 10 = 19

Thank you,

MrB

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